@keyframes hide-scroll { from, to { overflow: hidden; } } .collapsable-code { --border-color: color-mod(var(--accent) blend(#999 90%)); position: relative; width: 100%; margin: 40px 0; input[type="checkbox"] { position: absolute; visibility: hidden; } input[type="checkbox"]:checked { ~ pre, ~ .code-toolbar pre { padding: 0; border-top: none; } ~ .code-toolbar { padding: 0; border-top: none; max-height: 0px; animation: hide-scroll 0.4s backwards; overflow-y: hidden; .toolbar { display: none; } } ~ label .collapsable-code__toggle:after { content: attr(data-label-expand); } } label { position: relative; display: flex; justify-content: space-between; min-width: 30px; min-height: 30px; margin: 0; border-bottom: 1px solid var(--border-color); cursor: pointer; } &__title { flex: 1; color: var(--accent); padding: 3px 10px; text-overflow: ellipsis; white-space: nowrap; overflow: hidden; } &__language { color: var(--accent); border: 1px solid var(--border-color); border-bottom: none; padding: 3px 10px; } &__toggle { color: var(--accent); font-size: 16px; padding: 3px 10px; &:after { content: attr(data-label-collapse); } } pre { margin-top: 0; &::first-line { line-height: 0; } } .code-toolbar { position: static; margin: 0; max-height: 600px; transition: max-height 0.4s, padding 0.4s; overflow-y: auto; .toolbar { position: absolute; top: 55px; right: 30px; } } }