Frosted glass pill

Frosted glass pill: a CSS button. Copy the rules, or the prompt that rebuilds it.

CSS

.btn-032 {
  font: 600 15px/1 system-ui,sans-serif;
  color: #fff;
  background: rgba(255,255,255,.18);
  border: 1px solid rgba(255,255,255,.4);
  border-radius: 999px;
  padding: 13px 26px;
  cursor: pointer;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 24px rgba(0,0,0,.15),inset 0 1px 0 rgba(255,255,255,.5);
  transition: background .2s,border-color .2s
}
.btn-032:hover {
  background: rgba(255,255,255,.28);
  border-color: rgba(255,255,255,.7)
}
.btn-032:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 3px
}
.btn-032:active {
  background: rgba(255,255,255,.12)
}

HTML

<div style="background:linear-gradient(135deg,#7c3aed,#06b6d4);padding:28px"><button class="btn-032">Get the app</button></div>

Prompt

A frosted glass pill on a colourful background: 18% white fill, 12px backdrop blur, 1px 40% white border, a 1px 50% white inner highlight on top and a 0 8px 24px 15% black shadow. White 15px semibold text, fully rounded, 13px by 26px padding. Hover raises the fill to 28% and border to 70%; active drops the fill to 12%. Focus outline 2px white.

Frosted glass pill

Same shelf