Before after metrics

Before after metrics: a CSS card. Copy the rules, or the prompt that rebuilds it.

comparisontwo-columnmetricslightversus

Bundle size

Before412 KB
After96 KB

Container queries replaced 38 media-query blocks.

CSS
.card-096 {
  width: 320px;
  padding: 20px 22px;
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  font-family: system-ui,sans-serif;
  color: #111827
}
.card-096 h3 {
  margin: 0 0 14px;
  font-size: 15px;
  color: #6b7280;
  font-weight: 600
}
.card-096__cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px
}
.card-096__cols div {
  padding: 14px;
  border-radius: 12px;
  background: #f9fafb;
  border: 1px solid #f3f4f6;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: transform .2s
}
.card-096__cols div:hover {
  transform: translateY(-2px)
}
.card-096__cols span {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: #9ca3af
}
.card-096__cols b {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -.02em;
  color: #6b7280;
  text-decoration: line-through;
  text-decoration-thickness: 2px;
  text-decoration-color: #d1d5db
}
.card-096__cols .card-096__after {
  background: #ecfdf5;
  border-color: #a7f3d0
}
.card-096__after b {
  color: #047857;
  text-decoration: none
}
.card-096 p {
  margin: 14px 0 0;
  font-size: 13px;
  color: #6b7280
}
HTML
<article class="card-096">
  <h3>Bundle size</h3>
  <div class="card-096__cols">
    <div><span>Before</span><b>412 KB</b></div>
    <div class="card-096__after"><span>After</span><b>96 KB</b></div>
  </div>
  <p>Container queries replaced 38 media-query blocks.</p>
</article>
Prompt

Create a 320px comparison card: white, 1px #e5e7eb border, 16px radius. A 15px gray heading "Bundle size", then two equal columns: "Before" on #f9fafb with a 24px extra-bold value "412 KB" in gray with a 2px line-through, and "After" on mint #ecfdf5 with a #a7f3d0 border and the value "96 KB" in green #047857. Uppercase 11px #9ca3af labels; columns lift 2px on hover. A 13px #6b7280 explanation line at the bottom.