Add details shortcode

assets/css/style.css

@@ -576,6 +576,79 @@ nav[aria-label="breadcrumb"] li:last-child a{
     Shortcodes
 =================================================================*/
  
+details {
+    margin: 1rem auto;
+    padding: 0 1rem;
+    /* width: 35em; */
+    max-width: calc(100% - 2rem);
+    position: relative;
+    border: 1px solid #78909C;
+    border-radius: 6px;
+    background-color: #040b1e;
+    color: #c9a5e7;
+    transition: background-color 0.15s;
+}
+
+details > :last-child {
+    margin-bottom: 1rem;
+}
+
+details::before {
+    width: 100%;
+    height: 100%;
+    content: "";
+    position: absolute;
+    top: 0;
+    left: 0;
+    border-radius: inherit;
+    opacity: 0.15;
+    box-shadow: 0 0.25em 0.5em #263238;
+    pointer-events: none;
+    transition: opacity 0.2s;
+    z-index: -1;
+}
+
+details[open] {
+    background-color: #040b1e;
+}
+
+details[open]::before {
+    opacity: 0.6;
+}
+  
+summary {
+    padding: 1rem 2em 1rem 0;
+    display: block;
+    position: relative;
+    font-size: 1.33em;
+    font-weight: bold;
+    cursor: pointer;
+}
+
+summary::before, summary::after {
+    width: 0.75em;
+    height: 2px;
+    position: absolute;
+    top: 50%;
+    right: 0;
+    content: "";
+    background-color: currentColor;
+    text-align: right;
+    transform: translateY(-50%);
+    transition: transform 0.2s ease-in-out;
+}
+
+summary::after {
+    transform: translateY(-50%) rotate(90deg);
+}
+
+[open] summary::after {
+    transform: translateY(-50%) rotate(180deg);
+}
+
+summary::-webkit-details-marker {
+    display: none;
+}
 
 /*=================================================================
     Code Blocks

layouts/shortcodes/details.html

@@ -0,0 +1,4 @@
+<details class="">
+    <summary>{{ (.Get 0) | markdownify }}</summary>
+    {{ .Inner | $.Page.RenderString (dict "display" "block") }}
+</details>