optimized

style.css

@@ -24,7 +24,10 @@ input {
   font-family: var(--serif-font-family);
 }
 
-code, kbd, pre, samp {
+code,
+kbd,
+pre,
+samp {
   font-family: var(--mono-font-family);
   background-color: var(--hover-color);
   padding: 0 10px;
@@ -34,32 +37,43 @@ code {
   display: inline-block;
 }
 
-pre {
+pre,
+samp {
   font-size: .875em;
 }
 
-h2 + code {
+h2+code {
   margin-left: 70px;
   position: relative;
 }
 
-h2 + code::before {
+h2+code::before {
   content: '签名：';
   position: absolute;
   margin-left: -70px;
 }
 
-h3 {
+h3,
+h4 {
   font-family: var(--mono-font-family);
   font-size: 1em;
   margin-left: 10px;
   /* font-weight: bold; */
 }
 
-h3 ~ p {
+h3~p {
   margin-left: 10px;
 }
 
+h4 {
+  font-size: .9em;
+  margin-block-end: .4em;
+}
+
+h4+code {
+  font-size: .9rem;
+}
+
 a {
   font-weight: 500;
   color: #646cff;
@@ -120,7 +134,7 @@ h1 {
   user-select: none;
 }
 
-#directory>ul>li.title  {
+#directory>ul>li.title {
   margin: 20px 0 6px;
   font-weight: bold;
   font-size: 1.25em;