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Pure CSSMIT licensed

Minimalist Vanilla CSS Dashboard Shell (Zero Dependencies)

Forty-five lines of commented CSS. Zero JavaScript, zero classes-per-pixel utility soup, zero build step — a complete dashboard shell styled almost entirely through semantic landmarks (header, nav, main, aside, footer) so it drops straight into server-rendered PHP, Django or Rails templates. The CSS is the tutorial: every line carries a comment saying what it earns. Delete the comments and it fits in a tweet thread.

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The code

<section class="cdl-12" aria-label="Vanilla zero-dependency shell demo">
  <div class="cdl-12__shell">
    <header><strong>Plainboard</strong><a href="#docs">Docs</a><a href="#account">Account</a></header>
    <nav aria-label="Primary">
      <a href="#home" aria-current="page">Home</a>
      <a href="#projects">Projects</a>
      <a href="#tasks">Tasks</a>
      <a href="#invoices">Invoices</a>
      <a href="#team">Team</a>
    </nav>
    <main>
      <h1>Home</h1>
      <div class="cdl-12__stats">
        <section><h2>Open tasks</h2><p>23</p></section>
        <section><h2>Due this week</h2><p>7</p></section>
        <section><h2>Hours logged</h2><p>31.5</p></section>
      </div>
      <section>
        <h2>Recent activity</h2>
        <ul>
          <li>Invoice <b>#204</b> sent to Harper &amp; Co <time>10:41</time></li>
          <li>Task <b>“Migrate DNS”</b> completed <time>09:12</time></li>
          <li>New project <b>Riverside</b> created <time>Yesterday</time></li>
          <li>Task <b>“QA pass”</b> assigned to Sam <time>Yesterday</time></li>
        </ul>
      </section>
    </main>
    <footer>Rendered server-side · no client framework · <a href="#src">view source</a></footer>
  </div>
</section>
.cdl-12,
.cdl-12 *,
.cdl-12 *::before,
.cdl-12 *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.cdl-12 {
  background: var(--bg);
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  --accent: oklch(0.55 0.15 250);
  --ink: oklch(0.27 0.01 250);
  --mut: oklch(0.52 0.015 250);
  --edge: oklch(0.9 0.008 250);
  --paper: oklch(0.985 0.003 250);
  --pad: 14px;
  font-family: system-ui,sans-serif;
  color: var(--ink);
  container-type: inline-size;
}
/* ——— the ~45-line shell starts here ——— */

.cdl-12 .cdl-12__shell {
  width: 100%;
  height: 100vh;
  display: grid;
  grid-template-columns: 220px minmax(0,1fr);
  grid-template-rows: auto minmax(0,1fr) auto;
  grid-template-areas: "header header" "nav main" "footer footer";
  border: 1px solid var(--edge);
  border-radius: 14px;
  overflow: hidden;
  background: var(--paper);
}

.cdl-12 .cdl-12__shell>header {
  grid-area: header;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: var(--pad);
  background: white;
  border-bottom: 1px solid var(--edge);
}

.cdl-12 .cdl-12__shell>header strong {
  margin-right: auto;
  font-size: 15px;
}

.cdl-12 .cdl-12__shell>nav {
  grid-area: nav;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--pad);
  border-right: 1px solid var(--edge);
  background: white;
}

.cdl-12 .cdl-12__shell>main {
  grid-area: main;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: calc(var(--pad)*1.3);
  display: grid;
  gap: var(--pad);
  align-content: start;
}

.cdl-12 .cdl-12__shell>footer {
  grid-area: footer;
  padding: 10px var(--pad);
  font-size: 11.5px;
  color: var(--mut);
  background: white;
  border-top: 1px solid var(--edge);
}

.cdl-12 .cdl-12__shell a {
  color: var(--accent);
  text-decoration: none;
  font-size: 13px;
  font-weight: 550;
}

.cdl-12 .cdl-12__shell a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.cdl-12 .cdl-12__shell a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 3px;
}

.cdl-12 .cdl-12__shell>nav a {
  color: var(--mut);
  padding: 9px 12px;
  border-radius: 8px;
}

.cdl-12 .cdl-12__shell>nav a:hover {
  background: color-mix(in oklch,var(--accent) 6%,white);
  color: var(--ink);
  text-decoration: none;
}

.cdl-12 .cdl-12__shell>nav a[aria-current=page] {
  background: color-mix(in oklch,var(--accent) 12%,white);
  color: color-mix(in oklch,var(--accent) 75%,black);
}

.cdl-12 .cdl-12__shell h1 {
  font-size: 18px;
  letter-spacing: -.01em;
}

.cdl-12 .cdl-12__shell main section {
  background: white;
  border: 1px solid var(--edge);
  border-radius: 11px;
  padding: var(--pad);
}

.cdl-12 .cdl-12__shell main h2 {
  font-size: 11px;
  font-weight: 650;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--mut);
  margin-bottom: 6px;
}

.cdl-12__stats {
  display: grid;
  gap: var(--pad);
  grid-template-columns: repeat(auto-fit,minmax(min(150px,100%),1fr));
}

.cdl-12__stats p {
  font-size: 24px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.cdl-12 .cdl-12__shell ul {
  list-style: none;
  display: grid;
  gap: 1px;
}

.cdl-12 .cdl-12__shell li {
  display: flex;
  gap: 6px;
  align-items: baseline;
  font-size: 13px;
  padding: 9px 2px;
  border-bottom: 1px solid color-mix(in oklch,var(--edge) 55%,transparent);
}

.cdl-12 .cdl-12__shell li:last-child {
  border-bottom: none;
}

.cdl-12 .cdl-12__shell li b {
  font-weight: 600;
}

.cdl-12 .cdl-12__shell li time {
  margin-left: auto;
  font-size: 11px;
  color: var(--mut);
  font-variant-numeric: tabular-nums;
}

@container (max-width: 620px) {
  .cdl-12 .cdl-12__shell {
    grid-template-columns: minmax(0,1fr);
    grid-template-areas: "header" "nav" "main" "footer";
    grid-template-rows: auto auto minmax(0,1fr) auto;
  }

  .cdl-12 .cdl-12__shell>nav {
    flex-direction: row;
    overflow-x: auto;
    border-right: none;
    border-bottom: 1px solid var(--edge);
  }
}
/* ——— shell ends ——— */
Paste this into ChatGPT, Claude, Cursor, or any coding assistant. The block below is pre-framed with everything the AI needs to integrate this demo into your project — markup, styles, scoping notes, and the source URL. Hit Copy and paste straight into your chat.
Here's a working CSS Dashboard Layout from CodeFronts. Use it as-is or adapt to your framework. All classes are scoped under a unique prefix so the code won't collide with your existing styles. MIT licensed.
Demo: Minimalist Vanilla CSS Dashboard Shell (Zero Dependencies)
Source: https://codefronts.com/layouts/css-dashboard-layouts/minimalist-vanilla-css-dashboard-shell-zero-dependencies/

Forty-five lines of commented CSS. Zero JavaScript, zero classes-per-pixel utility soup, zero build step — a complete dashboard shell styled almost entirely through semantic landmarks (header, nav, main, aside, footer) so it drops straight into server-rendered PHP, Django or Rails templates. The CSS is the tutorial: every line carries a comment saying what it earns. Delete the comments and it fits in a tweet thread.
## HTML
```html
<section class="cdl-12" aria-label="Vanilla zero-dependency shell demo">
  <div class="cdl-12__shell">
    <header><strong>Plainboard</strong><a href="#docs">Docs</a><a href="#account">Account</a></header>
    <nav aria-label="Primary">
      <a href="#home" aria-current="page">Home</a>
      <a href="#projects">Projects</a>
      <a href="#tasks">Tasks</a>
      <a href="#invoices">Invoices</a>
      <a href="#team">Team</a>
    </nav>
    <main>
      <h1>Home</h1>
      <div class="cdl-12__stats">
        <section><h2>Open tasks</h2><p>23</p></section>
        <section><h2>Due this week</h2><p>7</p></section>
        <section><h2>Hours logged</h2><p>31.5</p></section>
      </div>
      <section>
        <h2>Recent activity</h2>
        <ul>
          <li>Invoice <b>#204</b> sent to Harper &amp; Co <time>10:41</time></li>
          <li>Task <b>“Migrate DNS”</b> completed <time>09:12</time></li>
          <li>New project <b>Riverside</b> created <time>Yesterday</time></li>
          <li>Task <b>“QA pass”</b> assigned to Sam <time>Yesterday</time></li>
        </ul>
      </section>
    </main>
    <footer>Rendered server-side · no client framework · <a href="#src">view source</a></footer>
  </div>
</section>
```
## CSS
```css
.cdl-12,
.cdl-12 *,
.cdl-12 *::before,
.cdl-12 *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.cdl-12 {
  background: var(--bg);
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  --accent: oklch(0.55 0.15 250);
  --ink: oklch(0.27 0.01 250);
  --mut: oklch(0.52 0.015 250);
  --edge: oklch(0.9 0.008 250);
  --paper: oklch(0.985 0.003 250);
  --pad: 14px;
  font-family: system-ui,sans-serif;
  color: var(--ink);
  container-type: inline-size;
}
/* ——— the ~45-line shell starts here ——— */

.cdl-12 .cdl-12__shell {
  width: 100%;
  height: 100vh;
  display: grid;
  grid-template-columns: 220px minmax(0,1fr);
  grid-template-rows: auto minmax(0,1fr) auto;
  grid-template-areas: "header header" "nav main" "footer footer";
  border: 1px solid var(--edge);
  border-radius: 14px;
  overflow: hidden;
  background: var(--paper);
}

.cdl-12 .cdl-12__shell>header {
  grid-area: header;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: var(--pad);
  background: white;
  border-bottom: 1px solid var(--edge);
}

.cdl-12 .cdl-12__shell>header strong {
  margin-right: auto;
  font-size: 15px;
}

.cdl-12 .cdl-12__shell>nav {
  grid-area: nav;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--pad);
  border-right: 1px solid var(--edge);
  background: white;
}

.cdl-12 .cdl-12__shell>main {
  grid-area: main;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: calc(var(--pad)*1.3);
  display: grid;
  gap: var(--pad);
  align-content: start;
}

.cdl-12 .cdl-12__shell>footer {
  grid-area: footer;
  padding: 10px var(--pad);
  font-size: 11.5px;
  color: var(--mut);
  background: white;
  border-top: 1px solid var(--edge);
}

.cdl-12 .cdl-12__shell a {
  color: var(--accent);
  text-decoration: none;
  font-size: 13px;
  font-weight: 550;
}

.cdl-12 .cdl-12__shell a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.cdl-12 .cdl-12__shell a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 3px;
}

.cdl-12 .cdl-12__shell>nav a {
  color: var(--mut);
  padding: 9px 12px;
  border-radius: 8px;
}

.cdl-12 .cdl-12__shell>nav a:hover {
  background: color-mix(in oklch,var(--accent) 6%,white);
  color: var(--ink);
  text-decoration: none;
}

.cdl-12 .cdl-12__shell>nav a[aria-current=page] {
  background: color-mix(in oklch,var(--accent) 12%,white);
  color: color-mix(in oklch,var(--accent) 75%,black);
}

.cdl-12 .cdl-12__shell h1 {
  font-size: 18px;
  letter-spacing: -.01em;
}

.cdl-12 .cdl-12__shell main section {
  background: white;
  border: 1px solid var(--edge);
  border-radius: 11px;
  padding: var(--pad);
}

.cdl-12 .cdl-12__shell main h2 {
  font-size: 11px;
  font-weight: 650;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--mut);
  margin-bottom: 6px;
}

.cdl-12__stats {
  display: grid;
  gap: var(--pad);
  grid-template-columns: repeat(auto-fit,minmax(min(150px,100%),1fr));
}

.cdl-12__stats p {
  font-size: 24px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.cdl-12 .cdl-12__shell ul {
  list-style: none;
  display: grid;
  gap: 1px;
}

.cdl-12 .cdl-12__shell li {
  display: flex;
  gap: 6px;
  align-items: baseline;
  font-size: 13px;
  padding: 9px 2px;
  border-bottom: 1px solid color-mix(in oklch,var(--edge) 55%,transparent);
}

.cdl-12 .cdl-12__shell li:last-child {
  border-bottom: none;
}

.cdl-12 .cdl-12__shell li b {
  font-weight: 600;
}

.cdl-12 .cdl-12__shell li time {
  margin-left: auto;
  font-size: 11px;
  color: var(--mut);
  font-variant-numeric: tabular-nums;
}

@container (max-width: 620px) {
  .cdl-12 .cdl-12__shell {
    grid-template-columns: minmax(0,1fr);
    grid-template-areas: "header" "nav" "main" "footer";
    grid-template-rows: auto auto minmax(0,1fr) auto;
  }

  .cdl-12 .cdl-12__shell>nav {
    flex-direction: row;
    overflow-x: auto;
    border-right: none;
    border-bottom: 1px solid var(--edge);
  }
}
/* ——— shell ends ——— */
```

How this works

The shell styles ELEMENTS, not classes — your backend templates stay clean:

/* 1 · the frame: three rows, two columns, one gap */
.shell{
  display:grid; height:100%;
  grid-template-columns: 220px minmax(0,1fr);
  grid-template-rows: auto minmax(0,1fr) auto;
  grid-template-areas: 'header header' 'nav main' 'footer footer';
}
/* 2 · landmarks claim their areas — no wrapper divs */
.shell > header{ grid-area:header; }
.shell > nav   { grid-area:nav; }
.shell > main  { grid-area:main; overflow-y:auto; }
.shell > footer{ grid-area:footer; }

Everything else is a short system: one --accent and four neutrals derived from color-mix(); cards that are just main > section; an auto-fit stat row; aria-current=page doubling as the active-link style hook (state lives in the markup you already render server-side):

nav a[aria-current=page]{
  background:color-mix(in oklch, var(--accent) 12%, white);
}

Because the selectors are landmark-based, the accessibility story is enforced by construction — you literally cannot use the stylesheet without semantic HTML. The one media-free responsive move: the stat grid uses auto-fit/minmax, and the shell collapses to a single column under 620px of container width in three extra lines.

Make it yours

  • Re-brand in one line: --accent feeds every tint via color-mix — links, active states, focus rings.
  • Density: --pad (14px) spaces the whole shell; 10px turns it into a compact ops tool.
  • Swap the nav column for a top tab row by re-drawing grid-template-areas — see demo 06; the landmarks don't change.
  • Add dark mode by pairing this with demo 10's token block — the landmark selectors are already token-driven.

Gotchas — read before shipping

  • Element selectors are global by nature — the shell scopes everything under .cdl-12 .shell here (and you should scope under body.dashboard or similar) so a marketing page's <aside> doesn't inherit dashboard styling.
  • aria-current=page is the correct semantic for “you are here” — resist inventing an .active class; assistive tech announces the ARIA version for free.
  • Zero-JS means no client-side drawer: on narrow containers the nav collapses to a horizontal scroll strip instead — an honest, dependency-free tradeoff (upgrade path: demo 07).

Browser support

ChromeSafariFirefoxEdge
111+16.2+113+111+

Nothing here is newer than 2023: grid template areas (2017), auto-fit (2017), color-mix/oklch (the stated floor), container query for the collapse (Chrome 105 / Safari 16 / Firefox 110).

Techniques used in this demo

container queriesMDN ↗color-mix()MDN ↗grid-templateMDN ↗oklch()MDN ↗

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