12 CSS Retro UI Designs01 / 12

Pure CSSMIT licensed

Retro Windows 95 UI (CSS Template)

A pixel-faithful Windows 95 desktop rebuilt in pure CSS — raised/inset bevels via split border-colors, the conic-gradient Start orb, a checkbox-hack Start menu, draggable-looking title bars, dotted focus rings and a working taskbar with tray clock. Pixelify Sans + VT323 on the classic teal hatched wallpaper.

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The code

<div class="ret-01">
  <input type="checkbox" id="ret-01-start" class="ret-01__chk">

  <div class="ret-01__desktop">
    <div class="ret-01__icons">
      <div class="ret-01__icon"><i>🖥️</i><span>My Computer</span></div>
      <div class="ret-01__icon"><i>📁</i><span>Documents</span></div>
      <div class="ret-01__icon"><i>🗑️</i><span>Recycle Bin</span></div>
      <div class="ret-01__icon"><i>🌐</i><span>Network</span></div>
    </div>
  </div>

  <div class="ret-01__win">
    <div class="ret-01__title">
      <span class="ret-01__tl"><b>📝</b> Welcome.txt — Notepad</span>
      <span class="ret-01__btns">
        <label class="ret-01__tb" for="ret-01-start">_</label>
        <span class="ret-01__tb">▢</span>
        <span class="ret-01__tb">✕</span>
      </span>
    </div>
    <div class="ret-01__menu"><span><u>F</u>ile</span><span><u>E</u>dit</span><span><u>S</u>earch</span><span><u>H</u>elp</span></div>
    <div class="ret-01__body">
      <h2>System Properties</h2>
      A faithful reconstruction of the 1995 desktop metaphor — raised bevels,
      dotted focus rings and the conic Start orb, all in pure CSS.
      <div class="ret-01__inset">
        C:\&gt; The grey box bevel uses split border-colors:<br>
        white top-left, charcoal bottom-right.<br>
        Click <b>Start</b> to pop the menu — checkbox hack, zero JS.
        <div class="ret-01__prog"><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i></div>
      </div>
      <div class="ret-01__row">
        <span class="ret-01__push ret-01__push--def">OK</span>
        <span class="ret-01__push">Cancel</span>
        <span class="ret-01__push">Apply</span>
      </div>
    </div>
  </div>

  <div class="ret-01__win ret-01__win--alt">
    <div class="ret-01__title">
      <span class="ret-01__tl"><b>⚠️</b> Error</span>
      <span class="ret-01__btns"><span class="ret-01__tb">✕</span></span>
    </div>
    <div class="ret-01__body" style="text-align:center">
      <div style="font-size:40px">⚠️</div>
      This program has performed an<br>illegal operation of pure nostalgia.
      <div class="ret-01__row" style="justify-content:center">
        <span class="ret-01__push ret-01__push--def">Close</span>
        <span class="ret-01__push">Details »</span>
      </div>
    </div>
  </div>

  <div class="ret-01__startmenu">
    <div class="ret-01__spine">Codefronts&nbsp;95</div>
    <div class="ret-01__slist">
      <div class="ret-01__sitem"><i>📑</i>Programs</div>
      <div class="ret-01__sitem"><i>📂</i>Documents</div>
      <div class="ret-01__sitem"><i>⚙️</i>Settings</div>
      <div class="ret-01__sitem"><i>🔍</i>Find</div>
      <div class="ret-01__sitem"><i>❓</i>Help</div>
      <div class="ret-01__sep"></div>
      <div class="ret-01__sitem"><i>🔌</i>Shut Down…</div>
    </div>
  </div>

  <div class="ret-01__taskbar">
    <label class="ret-01__start" for="ret-01-start"><i>W</i>Start</label>
    <div class="ret-01__tasks">
      <div class="ret-01__task ret-01__task--active">📝 Welcome.txt</div>
      <div class="ret-01__task">⚠️ Error</div>
    </div>
    <div class="ret-01__tray">🔊 📅 12:00 PM</div>
  </div>
</div>
@import url('https://fonts.googleapis.com/css2?family=VT323&family=Pixelify+Sans:wght@400;700&display=swap');

.ret-01,
.ret-01 *,
.ret-01 *::before,
.ret-01 *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.ret-01 ::selection {
  background: #000080;
  color: #fff;
}

.ret-01 ::-moz-selection {
  background: #000080;
  color: #fff;
}

.ret-01 {
  --teal: #008080;
  --gray: #c0c0c0;
  --dark: #808080;
  --darker: #404040;
  --navy: #000080;
  --white: #fdfdfd;
  --black: #0a0a0a;
  font-family: 'Pixelify Sans',sans-serif;
  background: var(--teal);
  min-height: 100vh;
  position: relative;
  overflow: hidden;
  color: var(--black);
}
/* desktop icons */

.ret-01__desktop {
  position: absolute;
  inset: 0;
  bottom: 46px;
  padding: 14px;
}

.ret-01__icons {
  display: flex;
  flex-direction: column;
  gap: 22px;
  width: 84px;
}

.ret-01__icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  width: 84px;
  text-align: center;
}

.ret-01__icon i {
  width: 46px;
  height: 42px;
  display: grid;
  place-items: center;
  font-size: 26px;
  background: linear-gradient(135deg,#dfe7ef,#9aa9bb);
  border: 1px solid var(--darker);
  box-shadow: inset 1px 1px 0 #fff;
}

.ret-01__icon span {
  color: #fff;
  font-size: 14px;
  text-shadow: 1px 1px 0 #000;
  padding: 1px 3px;
  line-height: 1.1;
}

.ret-01__icon:hover span {
  background: var(--navy);
}
/* WINDOW with the classic raised bevel: light top-left, dark bottom-right */

.ret-01__win {
  position: absolute;
  top: 64px;
  left: 120px;
  width: min(560px,calc(100% - 40px));
  background: var(--gray);
  border: 2px solid;
  border-color: var(--white) var(--darker) var(--darker) var(--white);
  box-shadow: 1px 1px 0 #000;
}

.ret-01__win--alt {
  top: 300px;
  left: auto;
  right: 30px;
  width: min(330px,calc(100% - 40px));
  display: none;
}

@media (min-width: 880px) {
  .ret-01__win--alt {
    display: block;
  }
}

.ret-01__title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  background: linear-gradient(90deg,var(--navy),#1084d0);
  color: #fff;
  padding: 4px 4px 4px 8px;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .02em;
}

.ret-01__title .ret-01__tl {
  display: flex;
  align-items: center;
  gap: 7px;
}

.ret-01__title .ret-01__tl b {
  font-size: 16px;
}

.ret-01__btns {
  display: flex;
  gap: 3px;
}

.ret-01__tb {
  width: 20px;
  height: 18px;
  background: var(--gray);
  border: 1px solid;
  border-color: var(--white) var(--darker) var(--darker) var(--white);
  display: grid;
  place-items: center;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  color: #000;
  font-family: 'VT323',monospace;
}

.ret-01__tb:active {
  border-color: var(--darker) var(--white) var(--white) var(--darker);
}

.ret-01__menu {
  display: flex;
  gap: 0;
  background: var(--gray);
  padding: 2px 4px;
  font-size: 14px;
  border-bottom: 1px solid var(--dark);
}

.ret-01__menu span {
  padding: 2px 8px;
  cursor: pointer;
}

.ret-01__menu span u {
  text-decoration: underline;
}

.ret-01__menu span:hover {
  background: var(--navy);
  color: #fff;
}

.ret-01__body {
  padding: 16px;
  font-family: 'VT323',monospace;
  font-size: 19px;
  line-height: 1.35;
}

.ret-01__inset {
  background: var(--white);
  border: 2px solid;
  border-color: var(--darker) var(--white) var(--white) var(--darker);
  padding: 14px;
  margin-top: 12px;
  min-height: 120px;
}

.ret-01__body h2 {
  font-family: 'Pixelify Sans';
  font-size: 20px;
  margin-bottom: 6px;
}

.ret-01__row {
  display: flex;
  gap: 10px;
  margin-top: 14px;
  justify-content: flex-end;
}

.ret-01__push {
  font-family: 'Pixelify Sans';
  font-size: 15px;
  padding: 6px 18px;
  background: var(--gray);
  cursor: pointer;
  border: 2px solid;
  border-color: var(--white) var(--darker) var(--darker) var(--white);
  box-shadow: 1px 1px 0 #000;
}

.ret-01__push:active {
  border-color: var(--darker) var(--white) var(--white) var(--darker);
  box-shadow: none;
}

.ret-01__push--def {
  outline: 1px dotted #000;
  outline-offset: -5px;
}

.ret-01__prog {
  height: 22px;
  background: var(--white);
  border: 2px solid;
  border-color: var(--darker) var(--white) var(--white) var(--darker);
  margin-top: 10px;
  display: flex;
  gap: 2px;
  padding: 2px;
}

.ret-01__prog i {
  flex: 0 0 14px;
  background: var(--navy);
}

.ret-01__prog i:nth-child(n+9) {
  background: transparent;
}
/* taskbar */

.ret-01__taskbar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 42px;
  background: var(--gray);
  border-top: 2px solid var(--white);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 6px;
}

.ret-01__start {
  display: flex;
  align-items: center;
  gap: 7px;
  font-weight: 700;
  font-size: 16px;
  padding: 3px 12px 3px 7px;
  background: var(--gray);
  cursor: pointer;
  border: 2px solid;
  border-color: var(--white) var(--darker) var(--darker) var(--white);
}

.ret-01__start i {
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  background: conic-gradient(from 90deg,#f00 0 25%,#0f0 0 50%,#00f 0 75%,#ff0 0);
  font-size: 0;
  border-radius: 2px;
}

.ret-01__start:active,
.ret-01.is-open .ret-01__start {
  border-color: var(--darker) var(--white) var(--white) var(--darker);
}

.ret-01__tasks {
  display: flex;
  gap: 5px;
  flex: 1;
  overflow: hidden;
}

.ret-01__task {
  padding: 3px 12px;
  font-size: 14px;
  background: var(--gray);
  border: 2px solid;
  border-color: var(--white) var(--darker) var(--darker) var(--white);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 160px;
}

.ret-01__task--active {
  border-color: var(--darker) var(--white) var(--white) var(--darker);
  font-weight: 700;
}

.ret-01__tray {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 3px 10px;
  font-family: 'VT323',monospace;
  font-size: 17px;
  border: 2px solid;
  border-color: var(--darker) var(--white) var(--white) var(--darker);
}
/* START MENU via checkbox hack */

.ret-01__chk {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.ret-01__startmenu {
  position: absolute;
  left: 6px;
  bottom: 46px;
  width: 212px;
  z-index: 30;
  background: var(--gray);
  border: 2px solid;
  border-color: var(--white) var(--darker) var(--darker) var(--white);
  box-shadow: 2px 2px 0 #000;
  display: flex;
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform .14s steps(4);
}

.ret-01__chk:checked ~ .ret-01__taskbar .ret-01__start {
  border-color: var(--darker) var(--white) var(--white) var(--darker);
}

.ret-01__chk:checked ~ .ret-01__startmenu {
  transform: scaleY(1);
}

.ret-01__spine {
  width: 30px;
  background: linear-gradient(180deg,var(--navy),#4040a0);
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  color: #fff;
  font-weight: 700;
  text-align: center;
  padding: 8px 0;
  font-size: 16px;
  letter-spacing: .1em;
}

.ret-01__slist {
  flex: 1;
  padding: 3px;
}

.ret-01__sitem {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 6px 10px;
  font-size: 15px;
  cursor: pointer;
}

.ret-01__sitem i {
  font-size: 18px;
}

.ret-01__sitem:hover {
  background: var(--navy);
  color: #fff;
}

.ret-01__sep {
  height: 2px;
  margin: 3px 2px;
  border-top: 1px solid var(--dark);
  border-bottom: 1px solid var(--white);
}

@media (max-width: 680px) {
  .ret-01__win {
    left: 14px;
    width: calc(100% - 28px);
  }

  .ret-01__icons {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ret-01__startmenu {
    transition: none;
  }
}
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 Retro UI Design 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: Retro Windows 95 UI (CSS Template)
Source: https://codefronts.com/design-styles/css-retro-designs/retro-windows-95-ui-css-template/

A pixel-faithful Windows 95 desktop rebuilt in pure CSS — raised/inset bevels via split border-colors, the conic-gradient Start orb, a checkbox-hack Start menu, draggable-looking title bars, dotted focus rings and a working taskbar with tray clock. Pixelify Sans + VT323 on the classic teal hatched wallpaper.
## HTML
```html
<div class="ret-01">
  <input type="checkbox" id="ret-01-start" class="ret-01__chk">

  <div class="ret-01__desktop">
    <div class="ret-01__icons">
      <div class="ret-01__icon"><i>🖥️</i><span>My Computer</span></div>
      <div class="ret-01__icon"><i>📁</i><span>Documents</span></div>
      <div class="ret-01__icon"><i>🗑️</i><span>Recycle Bin</span></div>
      <div class="ret-01__icon"><i>🌐</i><span>Network</span></div>
    </div>
  </div>

  <div class="ret-01__win">
    <div class="ret-01__title">
      <span class="ret-01__tl"><b>📝</b> Welcome.txt — Notepad</span>
      <span class="ret-01__btns">
        <label class="ret-01__tb" for="ret-01-start">_</label>
        <span class="ret-01__tb">▢</span>
        <span class="ret-01__tb">✕</span>
      </span>
    </div>
    <div class="ret-01__menu"><span><u>F</u>ile</span><span><u>E</u>dit</span><span><u>S</u>earch</span><span><u>H</u>elp</span></div>
    <div class="ret-01__body">
      <h2>System Properties</h2>
      A faithful reconstruction of the 1995 desktop metaphor — raised bevels,
      dotted focus rings and the conic Start orb, all in pure CSS.
      <div class="ret-01__inset">
        C:\&gt; The grey box bevel uses split border-colors:<br>
        white top-left, charcoal bottom-right.<br>
        Click <b>Start</b> to pop the menu — checkbox hack, zero JS.
        <div class="ret-01__prog"><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i><i></i></div>
      </div>
      <div class="ret-01__row">
        <span class="ret-01__push ret-01__push--def">OK</span>
        <span class="ret-01__push">Cancel</span>
        <span class="ret-01__push">Apply</span>
      </div>
    </div>
  </div>

  <div class="ret-01__win ret-01__win--alt">
    <div class="ret-01__title">
      <span class="ret-01__tl"><b>⚠️</b> Error</span>
      <span class="ret-01__btns"><span class="ret-01__tb">✕</span></span>
    </div>
    <div class="ret-01__body" style="text-align:center">
      <div style="font-size:40px">⚠️</div>
      This program has performed an<br>illegal operation of pure nostalgia.
      <div class="ret-01__row" style="justify-content:center">
        <span class="ret-01__push ret-01__push--def">Close</span>
        <span class="ret-01__push">Details »</span>
      </div>
    </div>
  </div>

  <div class="ret-01__startmenu">
    <div class="ret-01__spine">Codefronts&nbsp;95</div>
    <div class="ret-01__slist">
      <div class="ret-01__sitem"><i>📑</i>Programs</div>
      <div class="ret-01__sitem"><i>📂</i>Documents</div>
      <div class="ret-01__sitem"><i>⚙️</i>Settings</div>
      <div class="ret-01__sitem"><i>🔍</i>Find</div>
      <div class="ret-01__sitem"><i>❓</i>Help</div>
      <div class="ret-01__sep"></div>
      <div class="ret-01__sitem"><i>🔌</i>Shut Down…</div>
    </div>
  </div>

  <div class="ret-01__taskbar">
    <label class="ret-01__start" for="ret-01-start"><i>W</i>Start</label>
    <div class="ret-01__tasks">
      <div class="ret-01__task ret-01__task--active">📝 Welcome.txt</div>
      <div class="ret-01__task">⚠️ Error</div>
    </div>
    <div class="ret-01__tray">🔊 📅 12:00 PM</div>
  </div>
</div>
```
## CSS
```css
@import url('https://fonts.googleapis.com/css2?family=VT323&family=Pixelify+Sans:wght@400;700&display=swap');

.ret-01,
.ret-01 *,
.ret-01 *::before,
.ret-01 *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.ret-01 ::selection {
  background: #000080;
  color: #fff;
}

.ret-01 ::-moz-selection {
  background: #000080;
  color: #fff;
}

.ret-01 {
  --teal: #008080;
  --gray: #c0c0c0;
  --dark: #808080;
  --darker: #404040;
  --navy: #000080;
  --white: #fdfdfd;
  --black: #0a0a0a;
  font-family: 'Pixelify Sans',sans-serif;
  background: var(--teal);
  min-height: 100vh;
  position: relative;
  overflow: hidden;
  color: var(--black);
}
/* desktop icons */

.ret-01__desktop {
  position: absolute;
  inset: 0;
  bottom: 46px;
  padding: 14px;
}

.ret-01__icons {
  display: flex;
  flex-direction: column;
  gap: 22px;
  width: 84px;
}

.ret-01__icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  width: 84px;
  text-align: center;
}

.ret-01__icon i {
  width: 46px;
  height: 42px;
  display: grid;
  place-items: center;
  font-size: 26px;
  background: linear-gradient(135deg,#dfe7ef,#9aa9bb);
  border: 1px solid var(--darker);
  box-shadow: inset 1px 1px 0 #fff;
}

.ret-01__icon span {
  color: #fff;
  font-size: 14px;
  text-shadow: 1px 1px 0 #000;
  padding: 1px 3px;
  line-height: 1.1;
}

.ret-01__icon:hover span {
  background: var(--navy);
}
/* WINDOW with the classic raised bevel: light top-left, dark bottom-right */

.ret-01__win {
  position: absolute;
  top: 64px;
  left: 120px;
  width: min(560px,calc(100% - 40px));
  background: var(--gray);
  border: 2px solid;
  border-color: var(--white) var(--darker) var(--darker) var(--white);
  box-shadow: 1px 1px 0 #000;
}

.ret-01__win--alt {
  top: 300px;
  left: auto;
  right: 30px;
  width: min(330px,calc(100% - 40px));
  display: none;
}

@media (min-width: 880px) {
  .ret-01__win--alt {
    display: block;
  }
}

.ret-01__title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  background: linear-gradient(90deg,var(--navy),#1084d0);
  color: #fff;
  padding: 4px 4px 4px 8px;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .02em;
}

.ret-01__title .ret-01__tl {
  display: flex;
  align-items: center;
  gap: 7px;
}

.ret-01__title .ret-01__tl b {
  font-size: 16px;
}

.ret-01__btns {
  display: flex;
  gap: 3px;
}

.ret-01__tb {
  width: 20px;
  height: 18px;
  background: var(--gray);
  border: 1px solid;
  border-color: var(--white) var(--darker) var(--darker) var(--white);
  display: grid;
  place-items: center;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  color: #000;
  font-family: 'VT323',monospace;
}

.ret-01__tb:active {
  border-color: var(--darker) var(--white) var(--white) var(--darker);
}

.ret-01__menu {
  display: flex;
  gap: 0;
  background: var(--gray);
  padding: 2px 4px;
  font-size: 14px;
  border-bottom: 1px solid var(--dark);
}

.ret-01__menu span {
  padding: 2px 8px;
  cursor: pointer;
}

.ret-01__menu span u {
  text-decoration: underline;
}

.ret-01__menu span:hover {
  background: var(--navy);
  color: #fff;
}

.ret-01__body {
  padding: 16px;
  font-family: 'VT323',monospace;
  font-size: 19px;
  line-height: 1.35;
}

.ret-01__inset {
  background: var(--white);
  border: 2px solid;
  border-color: var(--darker) var(--white) var(--white) var(--darker);
  padding: 14px;
  margin-top: 12px;
  min-height: 120px;
}

.ret-01__body h2 {
  font-family: 'Pixelify Sans';
  font-size: 20px;
  margin-bottom: 6px;
}

.ret-01__row {
  display: flex;
  gap: 10px;
  margin-top: 14px;
  justify-content: flex-end;
}

.ret-01__push {
  font-family: 'Pixelify Sans';
  font-size: 15px;
  padding: 6px 18px;
  background: var(--gray);
  cursor: pointer;
  border: 2px solid;
  border-color: var(--white) var(--darker) var(--darker) var(--white);
  box-shadow: 1px 1px 0 #000;
}

.ret-01__push:active {
  border-color: var(--darker) var(--white) var(--white) var(--darker);
  box-shadow: none;
}

.ret-01__push--def {
  outline: 1px dotted #000;
  outline-offset: -5px;
}

.ret-01__prog {
  height: 22px;
  background: var(--white);
  border: 2px solid;
  border-color: var(--darker) var(--white) var(--white) var(--darker);
  margin-top: 10px;
  display: flex;
  gap: 2px;
  padding: 2px;
}

.ret-01__prog i {
  flex: 0 0 14px;
  background: var(--navy);
}

.ret-01__prog i:nth-child(n+9) {
  background: transparent;
}
/* taskbar */

.ret-01__taskbar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 42px;
  background: var(--gray);
  border-top: 2px solid var(--white);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 6px;
}

.ret-01__start {
  display: flex;
  align-items: center;
  gap: 7px;
  font-weight: 700;
  font-size: 16px;
  padding: 3px 12px 3px 7px;
  background: var(--gray);
  cursor: pointer;
  border: 2px solid;
  border-color: var(--white) var(--darker) var(--darker) var(--white);
}

.ret-01__start i {
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  background: conic-gradient(from 90deg,#f00 0 25%,#0f0 0 50%,#00f 0 75%,#ff0 0);
  font-size: 0;
  border-radius: 2px;
}

.ret-01__start:active,
.ret-01.is-open .ret-01__start {
  border-color: var(--darker) var(--white) var(--white) var(--darker);
}

.ret-01__tasks {
  display: flex;
  gap: 5px;
  flex: 1;
  overflow: hidden;
}

.ret-01__task {
  padding: 3px 12px;
  font-size: 14px;
  background: var(--gray);
  border: 2px solid;
  border-color: var(--white) var(--darker) var(--darker) var(--white);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 160px;
}

.ret-01__task--active {
  border-color: var(--darker) var(--white) var(--white) var(--darker);
  font-weight: 700;
}

.ret-01__tray {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 3px 10px;
  font-family: 'VT323',monospace;
  font-size: 17px;
  border: 2px solid;
  border-color: var(--darker) var(--white) var(--white) var(--darker);
}
/* START MENU via checkbox hack */

.ret-01__chk {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.ret-01__startmenu {
  position: absolute;
  left: 6px;
  bottom: 46px;
  width: 212px;
  z-index: 30;
  background: var(--gray);
  border: 2px solid;
  border-color: var(--white) var(--darker) var(--darker) var(--white);
  box-shadow: 2px 2px 0 #000;
  display: flex;
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform .14s steps(4);
}

.ret-01__chk:checked ~ .ret-01__taskbar .ret-01__start {
  border-color: var(--darker) var(--white) var(--white) var(--darker);
}

.ret-01__chk:checked ~ .ret-01__startmenu {
  transform: scaleY(1);
}

.ret-01__spine {
  width: 30px;
  background: linear-gradient(180deg,var(--navy),#4040a0);
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  color: #fff;
  font-weight: 700;
  text-align: center;
  padding: 8px 0;
  font-size: 16px;
  letter-spacing: .1em;
}

.ret-01__slist {
  flex: 1;
  padding: 3px;
}

.ret-01__sitem {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 6px 10px;
  font-size: 15px;
  cursor: pointer;
}

.ret-01__sitem i {
  font-size: 18px;
}

.ret-01__sitem:hover {
  background: var(--navy);
  color: #fff;
}

.ret-01__sep {
  height: 2px;
  margin: 3px 2px;
  border-top: 1px solid var(--dark);
  border-bottom: 1px solid var(--white);
}

@media (max-width: 680px) {
  .ret-01__win {
    left: 14px;
    width: calc(100% - 28px);
  }

  .ret-01__icons {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ret-01__startmenu {
    transition: none;
  }
}
```

Techniques used in this demo

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