bwya77_collapsible-code-blocks/styles.css

/* styles.css */
.markdown-preview-view pre.ccb-code-block {
    position: relative;
    padding-top: 24px;
    user-select: text;
    transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.markdown-preview-view pre.ccb-code-block code {
    display: block;
    line-height: 1.5em;
    transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-x: auto;
}

.markdown-preview-view pre.ccb-code-block.collapsed code {
    max-height: calc(var(--collapsed-lines, 1) * 1.5em);
    overflow: hidden;
    overflow-x: hidden;
}

.code-block-toggle {
    position: absolute;
    top: 4px;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    cursor: pointer;
    z-index: 2;
    background: transparent;
    border-radius: 4px;
    user-select: none;
    font-size: 16px;
}

/* Left alignment (default) */
.code-block-toggle {
    left: 4px;
}

/* Right alignment */
[data-button-alignment="right"] .code-block-toggle {
    right: 4px;
    left: auto;
}

/* When copy button is present, position to the left of it with more spacing and lower position */
[data-button-alignment="right"] .markdown-preview-view pre.ccb-code-block:has(.copy-code-button) .code-block-toggle {
    right: 38px;
    top: 8px;
}

/* For right-aligned buttons without copy button, also adjust position slightly */
[data-button-alignment="right"] .markdown-preview-view pre.ccb-code-block .code-block-toggle {
    top: 8px;
}

.code-block-toggle:hover {
    color: var(--text-normal);
    background: var(--background-modifier-hover);
}

.code-block-toggle:focus-visible {
    outline: 2px solid var(--text-accent);
    outline-offset: 2px;
}

.code-block-toggle::selection {
    background: transparent;
}

body[data-ccb-horizontal-scroll="true"] .markdown-preview-view pre.ccb-code-block:not(.collapsed) code {
    white-space: pre;
}

.ccb-hide-vertical-scrollbar::-webkit-scrollbar:vertical {
    width: 0;
}

/* New styles for dynamic states */
.hidden {
    display: none !important;
}

.element-hidden {
    display: none !important;
}

.element-visible {
    display: block;
}

.element-spacing {
    margin-top: var(--element-spacing);
}

/* Custom properties for dynamic values */
:root {
    --element-spacing: 0px;
    --collapsed-lines: 1;
}

.code-block-folded {
    min-height: 3em;
    padding: 1.5em 1em 1em 48px;
    background: var(--code-background);
    border-radius: 4px;
    color: var(--text-muted);
    font-family: var(--font-monospace);
    font-size: var(--code-size);
    line-height: var(--line-height-tight);
    position: relative;
}

.ccb-editor-codeblock {
    position: relative;
    padding-left: 32px;
}

.code-block-folded .folded-content {
    max-height: calc(var(--collapsed-lines, 1) * 1.5em);
    overflow: hidden;
}

.code-block-folded .folded-content pre {
    margin: 0;
    padding: 0;
    background: transparent;
    border: none;
    font-family: var(--font-monospace);
    font-size: inherit;
    line-height: 1.5em;
}

.code-block-folded .folded-content code {
    white-space: pre;
    display: block;
    color: inherit;
    font-size: inherit;
    font-family: var(--font-monospace);
    line-height: inherit;
}

/* Ensure syntax highlighting tokens are visible in folded state */
.code-block-folded .folded-content .token {
    color: inherit;
}

/* Preserve Prism.js syntax highlighting colors */
.code-block-folded .folded-content code[class*="language-"] {
    color: var(--text-normal);
}

.code-block-folded .code-block-toggle {
    top: 4px;
    left: 4px;
}

[data-button-alignment="right"] .code-block-folded .code-block-toggle {
    right: 4px;
    left: auto;
    top: 8px;
}

/* Rotate expand icon when right-aligned and collapsed */
[data-button-alignment="right"] .markdown-preview-view pre.ccb-code-block.collapsed .code-block-toggle,
[data-button-alignment="right"] .code-block-folded .code-block-toggle {
    transform: rotate(180deg);
}

/* Transparent button functionality - only in reading mode */
[data-transparent-button="true"] .markdown-preview-view .code-block-toggle {
    opacity: 0;
    transition: opacity 0.2s ease-in-out;
}

/* Reading mode - show only on direct button hover */
[data-transparent-button="true"] .markdown-preview-view .code-block-toggle:hover,
[data-transparent-button="true"] .markdown-preview-view .code-block-toggle:focus-visible {
    opacity: 1;
}

/* Edit mode - always show buttons (no transparency in edit mode) */

/* Dynamic positioning in edit mode based on code-block-flair presence */
/* When code-block-flair (language button) is present in the same line, position collapse button to its left */
.HyperMD-codeblock:has(.code-block-flair) .code-block-toggle {
    right: 80px; /* Position close to language button */
    left: auto;
}

/* Right-aligned buttons: when code-block-flair is present, move to left of language button */
[data-button-alignment="right"] .HyperMD-codeblock:has(.code-block-flair) .code-block-toggle {
    right: 80px; /* Position close to language button */
    left: auto;
}

/* Left-aligned buttons: when code-block-flair is present, stay on left but visible */
[data-button-alignment="left"] .HyperMD-codeblock:has(.code-block-flair) .code-block-toggle {
    left: 4px;
    right: auto;
}

/* When transparent button is enabled and language button is present, hide collapse button until hover */
[data-transparent-button="true"] .HyperMD-codeblock:has(.code-block-flair) .code-block-toggle {
    opacity: 0;
    transition: opacity 0.2s ease-in-out;
}

/* Show on hover when language button is present */
[data-transparent-button="true"] .HyperMD-codeblock:has(.code-block-flair):hover .code-block-toggle {
    opacity: 1;
}

/* When transparent button is enabled and editing (no language button), hide collapse button until hover */
[data-transparent-button="true"] .HyperMD-codeblock:not(:has(.code-block-flair)) .code-block-toggle {
    opacity: 0;
    transition: opacity 0.2s ease-in-out;
}

/* Show on hover when actively editing (no language button) */
[data-transparent-button="true"] .HyperMD-codeblock:not(:has(.code-block-flair)):hover .code-block-toggle {
    opacity: 1;
}