diff --git a/lib/app/communications/contact.js b/lib/app/communications/contact.js
index 1a57c2a..734fd2b 100644
--- a/lib/app/communications/contact.js
+++ b/lib/app/communications/contact.js
@@ -10,14 +10,17 @@ class Contact {
     }
 
     async show(parent = document.body) {
+        const tabIndex = Math.max.apply(null, [...document.querySelectorAll('[tabindex]')].map(e => e.tabIndex ?? 0)) + 3;
+
         const c = this.#option.contact;
         const contactName = createElement('input', input => {
             input.type = 'text';
-            input.tabIndex = 1;
+            input.className = 'ui-input';
+            input.tabIndex = tabIndex + 1;
             input.maxLength = 200;
             input.autocomplete = 'off';
         });
-        const preferences = new Dropdown({ tabindex: 2 });
+        const preferences = new Dropdown({ tabindex: tabIndex + 2 });
         preferences.source = [
             { value: '0', text: r('text', 'Text') },
             { value: '1', text: r('email', 'Email') },
@@ -25,23 +28,22 @@ class Contact {
         ];
         const contactEmail = createElement('input', input => {
             input.type = 'email';
-            input.tabIndex = 3;
+            input.className = 'ui-input';
+            input.tabIndex = tabIndex + 3;
             input.maxLength = 100;
             input.autocomplete = 'off';
         });
         const contactMobile = createElement('input', input => {
             input.type = 'tel';
-            input.tabIndex = 4;
+            input.className = 'ui-input';
+            input.tabIndex = tabIndex + 4;
             input.maxLength = 50;
             input.autocomplete = 'off';
         });
-        const checkOpt = createCheckbox({
-            customerAttributes: {
-                tabindex: 5
-            }
-        });
+        const checkOpt = createCheckbox({ tabindex: tabIndex + 5 });
         const contactNotes = createElement('textarea', txt => {
-            txt.tabIndex = 6;
+            txt.className = 'ui-text';
+            txt.tabIndex = tabIndex + 6;
             txt.maxLength = 2000;
             txt.style.height = '100px';
         });
@@ -49,6 +51,7 @@ class Contact {
         if (this.#option.company) {
             buttons.push({
                 text: c == null ? r('addContactRecord', 'Add Contact Record') : r('editContactRecord', 'Edit Contact Record'),
+                // tabindex: tabIndex + 7,
                 trigger: () => {
                     const item = this.prepare();
                     if (item == null) {
@@ -64,6 +67,7 @@ class Contact {
         buttons.push(
             {
                 text: r('workOrderOnly', 'Work Order Only'),
+                // tabindex: tabIndex + 8,
                 trigger: () => {
                     const item = this.prepare();
                     if (item == null) {
@@ -76,7 +80,10 @@ class Contact {
                     }
                 }
             },
-            { text: r('cancel', 'Cancel') }
+            {
+                text: r('cancel', 'Cancel'),
+                // tabindex: tabIndex + 9
+            }
         );
         const popup = createPopup(
             c == null ? r('addContact', 'Add Contact') : r('editContact', 'Edit Contact'),
diff --git a/lib/app/communications/customer.js b/lib/app/communications/customer.js
index 2640c93..feb1258 100644
--- a/lib/app/communications/customer.js
+++ b/lib/app/communications/customer.js
@@ -378,7 +378,10 @@ class CustomerCommunication {
                         }
                     },
                         createElement('span', span => span.innerText = r('nameColon', 'Name:')),
-                        createElement('input', 'ui-input')
+                        createElement('input', input => {
+                            input.type = 'text';
+                            input.className = 'ui-input';
+                        })
                     ),
                     createElement('div', 'prompt-count'),
                     createElement('button', button => {
diff --git a/lib/app/communications/follower.js b/lib/app/communications/follower.js
index fbcba0d..f939928 100644
--- a/lib/app/communications/follower.js
+++ b/lib/app/communications/follower.js
@@ -10,12 +10,16 @@ class Follower {
     }
 
     async show(parent = document.body) {
+        const tabIndex = Math.max.apply(null, [...document.querySelectorAll('[tabindex]')].map(e => e.tabIndex ?? 0)) + 3;
+
         const gridContainer = createElement('div', 'follower-grid');
         const popup = createPopup(
             r('addFollowers', 'Add Followers'),
             createElement('div', 'follower-wrapper',
                 createElement('div', div => div.innerText = r('whoWantReceiveCustomerNotification', 'Who do you want to receive customer notifications?')),
                 createElement('input', search => {
+                    search.type = 'text';
+                    search.tabIndex = tabIndex + 3;
                     search.className = 'ui-input follower-search';
                     search.addEventListener('input', () => {
                         const key = search.value;
diff --git a/lib/app/communications/style.scss b/lib/app/communications/style.scss
index 07d700e..e6d5aa8 100644
--- a/lib/app/communications/style.scss
+++ b/lib/app/communications/style.scss
@@ -1,3 +1,5 @@
+@import "../../ui/css/functions/func.scss";
+
 .popup-mask .wrapper-edit-method {
     width: 100%;
 
@@ -32,10 +34,11 @@
         fill: var(--dark-fore-color);
         border-radius: 15px;
         border: none;
-        outline: none;
         transition: background-color .2s;
         user-select: none;
 
+        @include outline();
+
         &:hover {
             background-color: var(--dark-fore-opacity-color);
 
@@ -218,10 +221,7 @@
             font-size: var(--font-smaller-size);
             font-family: var(--font-family);
 
-            &:focus,
-            &:focus-visible {
-                outline: none;
-            }
+            @include outline();
         }
 
         >div {
diff --git a/lib/ui/checkbox.js b/lib/ui/checkbox.js
index 1ddb19d..8faf596 100644
--- a/lib/ui/checkbox.js
+++ b/lib/ui/checkbox.js
@@ -2,9 +2,23 @@ import './css/checkbox.scss';
 import { createElement } from "../functions";
 import { createIcon } from "./icon";
 
-function fillCheckbox(container, type, label, charactor = 'check') {
+function fillCheckbox(container, type = 'fa-regular', label, tabindex = -1, charactor = 'check') {
     container.appendChild(
-        createElement('layer', 'check-box-inner', createIcon(type, charactor))
+        createElement('layer', layer => {
+            layer.className = 'check-box-inner';
+            layer.addEventListener('keypress', e => {
+                if (e.key === ' ' || e.key === 'Enter') {
+                    const input = container.querySelector('input');
+                    if (input != null) {
+                        input.checked = !input.checked;
+                        input.dispatchEvent(new Event('change'));
+                    }
+                }
+            });
+            if (tabindex >= 0) {
+                layer.tabIndex = tabindex;
+            }
+        }, createIcon(type, charactor))
     );
     if (label instanceof Element) {
         container.appendChild(label);
@@ -38,7 +52,7 @@ function createRadiobox(opts = {}) {
     if (opts.className) {
         container.classList.add(opts.className);
     }
-    fillCheckbox(container, opts.type || 'fa-regular', opts.label, 'circle');
+    fillCheckbox(container, opts.type, opts.label, opts.tabindex, 'circle');
     return container;
 }
 
@@ -78,7 +92,7 @@ function createCheckbox(opts = {}) {
         opts.uncheckedNode.classList.add('unchecked');
         container.appendChild(opts.uncheckedNode);
     } else {
-        fillCheckbox(container, opts.type || 'fa-regular', opts.label);
+        fillCheckbox(container, opts.type, opts.label, opts.tabindex);
     }
     return container;
 }
@@ -130,7 +144,7 @@ function resolveCheckbox(container = document.body, legacy) {
                 label.className = 'checkbox-wrapper';
             }
             label.replaceChildren();
-            fillCheckbox(label, 'fa-regular', text);
+            fillCheckbox(label, 'fa-regular', text, chk.tabIndex);
             label.insertBefore(chk, label.firstChild);
         }
     }
@@ -144,9 +158,10 @@ function resolveCheckbox(container = document.body, legacy) {
                 box.classList.add('checkbox-image');
             }
         } else {
-            const type = box.dataset.type || 'fa-regular';
-            const label = box.dataset.label;
-            fillCheckbox(box, type, label)
+            fillCheckbox(box,
+                box.dataset.type,
+                box.dataset.label,
+                box.dataset.tabindex)
             box.removeAttribute('data-type');
             box.removeAttribute('data-label');
         }
diff --git a/lib/ui/css/checkbox.scss b/lib/ui/css/checkbox.scss
index 5c802d3..0081a0b 100644
--- a/lib/ui/css/checkbox.scss
+++ b/lib/ui/css/checkbox.scss
@@ -1,4 +1,4 @@
-@import './functions/checkbox.scss';
+@import "./functions/checkbox.scss";
 
 .checkbox-image {
     >input[type="checkbox"] {
diff --git a/lib/ui/css/common.scss b/lib/ui/css/common.scss
index 223f3ef..4fda95e 100644
--- a/lib/ui/css/common.scss
+++ b/lib/ui/css/common.scss
@@ -1,26 +1,11 @@
+@import "../css/functions/func.scss";
+
 .ui-text,
-.ui-input {
+.ui-input[type] {
     font-size: var(--font-size);
     font-family: var(--font-family);
-    border: 1px solid var(--box-color);
-    border-radius: var(--border-radius);
-    transition: border-color .2s;
 
-    &:focus,
-    &:focus-visible {
-        outline: none;
-    }
-
-    &:focus,
-    &:hover {
-        border-color: var(--focus-color);
-    }
-
-    &:disabled {
-        border-color: var(--disabled-box-color);
-        color: var(--disabled-color);
-        background-color: var(--disabled-bg-color);
-    }
+    @include outborder();
 }
 
 .ui-input {
diff --git a/lib/ui/css/dropdown.scss b/lib/ui/css/dropdown.scss
index f30cb1f..93a7e4c 100644
--- a/lib/ui/css/dropdown.scss
+++ b/lib/ui/css/dropdown.scss
@@ -1,4 +1,4 @@
-@import './functions/func.scss';
+@import "./functions/func.scss";
 
 $headerHeight: 26px;
 $caretWidth: 26px;
@@ -16,90 +16,15 @@ $listMaxHeight: 210px;
     border-radius: unset;
     user-select: none;
     position: relative;
+    font-size: var(--font-size);
+    font-family: var(--font-family);
 
     >.drop-header {
-        border: 1px solid var(--border-color);
-        border-radius: var(--border-radius);
         background-color: var(--bg-color);
         display: flex;
         height: $headerHeight;
-        transition: border-color .2s;
 
-        &:focus,
-        &:hover {
-            border-color: var(--focus-color);
-            // box-shadow: 0 0 3px 1px rgba(0, 0, 0, .2);
-        }
-
-        &:focus,
-        &:focus-visible {
-            outline: none;
-        }
-
-        /*>.drop-select-container {
-            flex: 1 1 auto;
-            overflow-x: auto;
-            white-space: nowrap;
-            display: flex;
-            flex-direction: row;
-            @include scrollbar();
-
-            &::-webkit-scrollbar {
-                height: $scrollBarSize;
-            }
-
-            &::-webkit-scrollbar-thumb {
-                border-radius: var(--border-radius);
-            }
-
-            >span {
-                display: inline-block;
-                margin: 2px;
-                padding: 0 2px;
-                border: 1px solid lightgray;
-                height: 20px;
-                line-height: 20px;
-                background-color: white;
-                font-size: $tinySize;
-                border-radius: var(--border-radius);
-                cursor: pointer;
-                position: relative;
-
-                >svg {
-                    display: none;
-                    width: 8px;
-                    height: 20px;
-                    fill: white;
-                    vertical-align: top;
-                }
-
-                &:hover {
-                    border-color: #1890ff;
-                    border-top-right-radius: 0;
-                    border-bottom-right-radius: 0;
-                    background-color: #1890ff;
-                    color: white;
-
-                    >svg {
-                        display: inline-block;
-                        margin-left: 3px;
-                        padding: 0 2px;
-                    }
-                }
-            }
-
-            >label {
-                flex: 1 1 auto;
-                min-width: 40px;
-                cursor: pointer;
-                outline: none;
-                line-height: $headerHeight;
-                padding: 0 4px;
-                font-weight: 400;
-                font-size: var(--font-smaller-size);
-                color: var(--color);
-            }
-        }*/
+        @include outborder();
 
         >.drop-text {
             flex: 1 1 auto;
@@ -110,8 +35,9 @@ $listMaxHeight: 210px;
             overflow: hidden;
             text-overflow: ellipsis;
             border: none;
-            outline: none;
             white-space: nowrap;
+
+            @include outline();
         }
 
         >input.drop-text {
@@ -143,11 +69,12 @@ $listMaxHeight: 210px;
         }
 
         &.disabled {
-            border-color: var(--disabled-bg-color);
+            border-color: var(--disabled-border-color);
+            background-color: var(--disabled-bg-color);
             color: var(--disabled-color);
 
             &:focus {
-                border-color: var(--disabled-bg-color);
+                border-color: var(--disabled-border-color);
                 // box-shadow: none;
             }
 
@@ -170,8 +97,6 @@ $listMaxHeight: 210px;
         transition: transform 120ms ease, opacity 120ms ease, visibility 120ms ease;
         width: calc(100% + 2px);
         box-sizing: border-box;
-        /*border: 1px solid var(--border-color);
-        border-top-width: 0;*/
         box-shadow: 0 3px 6px -4px rgba(0, 0, 0, .12), 0 6px 16px 0 rgba(0, 0, 0, .08), 0 9px 28px 8px rgba(0, 0, 0, .05);
         left: -1px;
 
@@ -202,17 +127,10 @@ $listMaxHeight: 210px;
                 box-sizing: border-box;
                 width: 100%;
                 height: $searchInputHeight;
-                outline: none;
-                border: 1px solid var(--border-color);
-                border-radius: var(--border-radius);
                 padding: 0 6px 0 22px;
                 color: var(--color);
-                transition: border-color .2s;
 
-                &:hover,
-                &:focus {
-                    border-color: var(--focus-color);
-                }
+                @include outborder();
 
                 // &:focus {
                 //     box-shadow: 0 0 3px 1px rgba(0, 0, 0, .2);
diff --git a/lib/ui/css/functions/checkbox.scss b/lib/ui/css/functions/checkbox.scss
index c8ddd1e..216ff54 100644
--- a/lib/ui/css/functions/checkbox.scss
+++ b/lib/ui/css/functions/checkbox.scss
@@ -1,3 +1,5 @@
+@import "./func.scss";
+
 @mixin check-box() {
     .check-box-inner {
         position: relative;
@@ -6,12 +8,11 @@
         width: 14px;
         height: 14px;
         background-color: #fff;
-        border: 1px solid var(--box-color);
         user-select: none;
-        border-radius: 2px;
-        transition: all .2s;
         cursor: pointer;
 
+        @include outborder();
+
         >svg {
             position: absolute;
             top: 0;
@@ -50,17 +51,18 @@
 
         &:disabled {
             &+.check-box-inner {
-                border-color: var(--disabled-box-color);
+                border-color: var(--disabled-border-color);
+                background-color: var(--disabled-bg-color);
                 cursor: default;
             }
 
             &:checked+.check-box-inner {
-                border-color: var(--disabled-box-color);
-                background-color: var(--disabled-box-color);
+                border-color: var(--disabled-border-color);
+                background-color: var(--disabled-border-color);
             }
 
             &~span {
-                color: var(--disabled-box-color);
+                color: var(--disabled-border-color);
                 cursor: default;
             }
         }
diff --git a/lib/ui/css/functions/func.scss b/lib/ui/css/functions/func.scss
index 02b909a..4d8b6ae 100644
--- a/lib/ui/css/functions/func.scss
+++ b/lib/ui/css/functions/func.scss
@@ -15,4 +15,31 @@
         background-color: rgba(168, 168, 168, 0.9);
         border-radius: 4px;
     }
+}
+
+@mixin outline() {
+
+    &:focus,
+    &:focus-visible {
+        outline: none;
+    }
+}
+
+@mixin outborder() {
+    border: 1px solid var(--border-color);
+    border-radius: var(--border-radius);
+    transition: border-color .12s ease;
+
+    @include outline();
+
+    &:focus,
+    &:hover {
+        border-color: var(--focus-border-color);
+    }
+
+    &:disabled {
+        border-color: var(--disabled-border-color);
+        color: var(--disabled-color);
+        background-color: var(--disabled-bg-color);
+    }
 }
\ No newline at end of file
diff --git a/lib/ui/css/grid.scss b/lib/ui/css/grid.scss
index 931e36c..c1fdd88 100644
--- a/lib/ui/css/grid.scss
+++ b/lib/ui/css/grid.scss
@@ -1,4 +1,4 @@
-@import './functions/func.scss';
+@import "./functions/func.scss";
 
 .grid {
     position: relative;
@@ -43,16 +43,11 @@
         --spacing-cell: 6px 4px 6px 8px;
     }
 
-    &:focus,
-    &:focus-visible {
-        outline: none;
-    }
+    @include outline();
 
     &,
     input[type="text"],
-    textarea,
-    .drop-wrapper>.drop-header>.drop-text,
-    .drop-wrapper>.drop-box>.drop-list {
+    textarea {
         font-size: var(--font-size);
         font-family: var(--font-family);
     }
@@ -238,10 +233,7 @@
                         width: 100%;
                         padding: 0;
 
-                        &:focus,
-                        &:focus-visible {
-                            outline: none;
-                        }
+                        @include outline();
 
                         &:disabled {
                             color: var(--text-disabled-color);
diff --git a/lib/ui/css/popup.scss b/lib/ui/css/popup.scss
index 9ec5ec8..0f8db69 100644
--- a/lib/ui/css/popup.scss
+++ b/lib/ui/css/popup.scss
@@ -1,4 +1,4 @@
-@import './functions/func.scss';
+@import "./functions/func.scss";
 
 $headerLineHeight: 24px;
 $buttonHeight: 28px;
@@ -75,6 +75,14 @@ $buttonHeight: 28px;
                 &:hover {
                     opacity: .8;
                 }
+
+                &:focus,
+                &:focus-visible {
+                    outline: none;
+                    opacity: .8;
+                    background-color: rgb(0 0 0/10%);
+                    border-radius: var(--corner-radius);
+                }
             }
         }
 
@@ -118,7 +126,7 @@ $buttonHeight: 28px;
                     width: 40px;
                     height: 40px;
 
-                    &+span {
+                    +span {
                         padding-left: 16px;
                     }
                 }
@@ -148,7 +156,7 @@ $buttonHeight: 28px;
                             font-weight: bold;
                         }
 
-                        &+* {
+                        +* {
                             flex: 1 1 auto;
                             margin-right: 10px;
                             box-sizing: border-box;
@@ -156,30 +164,11 @@ $buttonHeight: 28px;
                             line-height: var(--line-height);
                         }
 
-                        &+input[type="text"],
-                        &+input[type="email"],
-                        &+input[type="tel"],
-                        &+textarea {
-                            border: 1px solid var(--border-color);
-                            border-radius: var(--border-radius);
+                        +textarea {
                             text-indent: var(--text-indent);
-                            transition: border-color .12s ease;
-
-                            &:hover {
-                                border-color: var(--focus-color);
-                            }
-
-                            &:focus,
-                            &:focus-visible {
-                                outline: none;
-                            }
                         }
 
-                        &+.drop-wrapper>.drop-header>.drop-text {
-                            font-size: 12px;
-                        }
-
-                        &+.checkbox-wrapper {
+                        +.checkbox-wrapper {
                             padding: 0;
                         }
                     }
@@ -210,14 +199,12 @@ $buttonHeight: 28px;
                 background-color: var(--title-bg-color);
                 transition: opacity .12s ease;
 
+                &:focus,
                 &:hover {
                     opacity: .8;
                 }
 
-                &:focus,
-                &:focus-visible {
-                    outline: none;
-                }
+                @include outline();
             }
         }
 
diff --git a/lib/ui/css/tooltip.scss b/lib/ui/css/tooltip.scss
index 860e97e..b19b41d 100644
--- a/lib/ui/css/tooltip.scss
+++ b/lib/ui/css/tooltip.scss
@@ -1,8 +1,11 @@
+@import "./functions/func.scss";
+
 .tooltip-color {
     background-color: #fff;
     color: #323130;
     border-color: rgba(204, 204, 204, .8);
-    outline: none;
+
+    @include outline();
 }
 
 .tooltip-wrapper {
diff --git a/lib/ui/css/variables/definition.scss b/lib/ui/css/variables/definition.scss
index 1e44cdd..cf0fcb4 100644
--- a/lib/ui/css/variables/definition.scss
+++ b/lib/ui/css/variables/definition.scss
@@ -11,16 +11,16 @@
 
 :root {
     --color: #201f1e;
-    --red-color: red;
     --bg-color: #fff;
+    --border-color: #b9b9b9;
+    --focus-border-color: #666;
+    --disabled-color: #aaa;
+    --disabled-bg-color: #e9e9e9;
+    --disabled-border-color: #d9d9d9;
+
+    --red-color: red;
     --title-color: #fff;
     --title-bg-color: rgb(68, 114, 196);
-    --border-color: #d9d9d9;
-    --focus-color: #666;
-    --disabled-bg-color: #e9e9e9;
-    --disabled-color: #aaa;
-    --box-color: #999898;
-    --disabled-box-color: #d9d9d9;
     --hover-bg-color: #eee;
     --link-color: #1890ff;
     --primary-color: rgb(123, 28, 33);
diff --git a/lib/ui/dropdown.js b/lib/ui/dropdown.js
index 2795029..9a3b1ad 100644
--- a/lib/ui/dropdown.js
+++ b/lib/ui/dropdown.js
@@ -120,12 +120,54 @@ class Dropdown {
 
         // header
         const header = createElement('div', 'drop-header');
+        header.addEventListener('keypress', e => {
+            if (e.key === ' ' || e.key === 'Enter') {
+                header.dispatchEvent(new MouseEvent('click'));
+            }
+        });
+        header.addEventListener('keydown', e => {
+            const up = e.key === 'ArrowUp';
+            const down = e.key === 'ArrowDown';
+            if (up || down) {
+                const source = this.source;
+                const count = source.length;
+                const valuekey = this.#options.valuekey;
+                let index = source?.indexOf(this.#selected);
+                if (isNaN(index) || index < -1) {
+                    index = -1;
+                } else if (index >= count) {
+                    index = count - 1;
+                }
+                if (up) {
+                    if (index > 0) {
+                        index--;
+                    } else {
+                        index = 0;
+                    }
+                } else if (down) {
+                    if (index < 0) {
+                        index = 0;
+                    } else if (index < count) {
+                        index++;
+                    } else {
+                        index = count - 1;
+                    }
+                }
+                const target = source[index]?.[valuekey];
+                if (target != null) {
+                    this.select(target);
+                }
+            } else if (e.key === 'Tab') {
+                this.#dropdown(false);
+            }
+        });
         header.addEventListener('click', () => {
             if (this.disabled) {
                 return;
             }
             const active = this.#expanded;
-            if (active && this.#label.hasFocus()) {
+            const label = this.#label;
+            if (active && label.ownerDocument.activeElement === label) {
                 return;
             }
             this.#dropdown(!active);
@@ -230,6 +272,10 @@ class Dropdown {
             }
             this.#label.value = selected;
         } else {
+            const expanded = this.#expanded;
+            if (expanded) {
+                this.#container.querySelectorAll('li[data-value].selected').forEach(li => li.classList.remove('selected'));
+            }
             if (item == null) {
                 this.#selected = null;
                 this.#label.innerText = ' ';
@@ -245,6 +291,13 @@ class Dropdown {
                 }
                 this.#label.innerText = text;
             }
+            if (expanded) {
+                const val = selected.replace(/"/g, '\\"');
+                const li = this.#container.querySelector(`li[data-value="${val}"]`);
+                if (li != null) {
+                    li.classList.add('selected');
+                }
+            }
         }
         this.#selected = item;
         if (!silence && typeof this.onselected === 'function') {
@@ -276,7 +329,7 @@ class Dropdown {
         }
     }
 
-    get #expanded() { return this.#container?.style?.visibility === 'visible' }
+    get #expanded() { return this.#container?.classList?.contains('active') }
 
     #dropdown(flag = true) {
         const options = this.#options;
diff --git a/lib/ui/popup.js b/lib/ui/popup.js
index 0354e2e..c202481 100644
--- a/lib/ui/popup.js
+++ b/lib/ui/popup.js
@@ -110,6 +110,8 @@ class Popup {
             mask.classList.add('popup-transparent');
         }
         const container = createElement('div', 'popup-container');
+        let tabIndex = Math.max.apply(null, [...document.querySelectorAll('[tabindex]')].map(e => e.tabIndex ?? 0));
+        container.tabIndex = tabIndex + 1;
         const close = () => {
             mask.classList.add('popup-active');
             mask.style.opacity = 0;
@@ -155,7 +157,13 @@ class Popup {
                 }
                 if (this.#option.collapsable === true) {
                     const collapse = createIcon('fa-regular', 'compress-alt');
+                    collapse.tabIndex = tabIndex + 2;
                     collapse.classList.add('icon-expand');
+                    collapse.addEventListener('keypress', e => {
+                        if (e.key === ' ' || e.key === 'Enter') {
+                            collapse.dispatchEvent(new MouseEvent('click'));
+                        }
+                    });
                     collapse.addEventListener('click', () => {
                         if (container.classList.contains('popup-collapse')) {
                             const bounds = this.#bounds;
@@ -176,6 +184,12 @@ class Popup {
                     header.appendChild(collapse);
                 }
                 const cancel = createIcon('fa-regular', 'times');
+                cancel.tabIndex = tabIndex + 3;
+                cancel.addEventListener('keypress', e => {
+                    if (e.key === ' ' || e.key === 'Enter') {
+                        close();
+                    }
+                });
                 cancel.addEventListener('click', () => close());
                 header.appendChild(cancel);
             }),
@@ -184,9 +198,15 @@ class Popup {
             ))
         );
         if (Array.isArray(this.#option.buttons)) {
+            tabIndex = Math.max.apply(null, [...container.querySelectorAll('[tabindex]')].map(e => e.tabIndex ?? 0));
             container.appendChild(
-                createElement('div', 'popup-footer', ...this.#option.buttons.map(b => {
-                    const button = createElement('div', 'popup-button');
+                createElement('div', 'popup-footer', ...this.#option.buttons.map((b, i) => {
+                    const button = createElement('button', 'popup-button');
+                    if (b.tabindex > 0) {
+                        button.tabIndex = b.tabindex;
+                    } else {
+                        button.tabIndex = tabIndex + i + 1;
+                    }
                     button.innerText = b.text;
                     button.addEventListener('click', () => {
                         if (typeof b.trigger === 'function') {
@@ -207,6 +227,19 @@ class Popup {
                     return button;
                 }))
             );
+            const tabs = [...container.querySelectorAll('[tabindex]')].map(e => e.tabIndex ?? 0);
+            const tabMin = Math.min.apply(null, tabs);
+            const tabMax = Math.max.apply(null, tabs);
+            const last = container.querySelector(`[tabindex="${tabMax}"]`);
+            if (last != null) {
+                last.addEventListener('keydown', e => {
+                    if (e.key === 'Tab') {
+                        const first = container.querySelector(`[tabindex="${tabMin}"]`);
+                        first?.focus();
+                        e.preventDefault();
+                    }
+                });
+            }
         }
         // resizable
         if (this.#option.resizable === true) {
@@ -264,7 +297,8 @@ class Popup {
         }
         return new Promise(resolve => {
             setTimeout(() => {
-                mask.style.opacity = 1
+                mask.style.opacity = 1;
+                this.container.focus();
                 resolve(mask);
             }, 0);
         });
@@ -396,7 +430,10 @@ export function showAlert(title, message, iconType = 'info', parent = document.b
                 { text: r('ok', 'OK'), trigger: resolve }
             ]
         });
-        popup.show(parent);
+        popup.show(parent).then(mask => {
+            const button = mask.querySelector('.popup-container .popup-footer .popup-button:last-child');
+            button?.focus();
+        });
     });
 }
 
@@ -442,6 +479,9 @@ export function showConfirm(title, content, buttons, iconType = 'question', pare
                     { text: r('no', 'No'), trigger: p => resolve({ key: 'no', popup: p }) }
                 ]
         });
-        popup.show(parent);
+        popup.show(parent).then(mask => {
+            const button = mask.querySelector('.popup-container .popup-footer .popup-button:last-child');
+            button?.focus();
+        });
     });
 }
\ No newline at end of file