Card That Breathes | Learning Axis

HTML

CSS

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: system-ui, sans-serif;
}
body {
  height: 100vh;
  display: grid;
  place-items: center;
  background: linear-gradient(120deg, #0f2027, #203a43, #2c5364);
  overflow: hidden;
}
.card {
  position: relative;
  width: 320px;
  height: 200px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255,255,255,0.25);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
  animation: breathe 5s ease-in-out infinite;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  inset: -50%;
  background: linear-gradient(
    120deg,
    transparent,
    rgba(255,255,255,0.4),
    transparent
    );
  animation: light 6s linear infinite;
}
.content {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: white;
  text-align: center;
}
.content h2 {
  font-size: 22px;
  letter-spacing: 1px;
}
.content p {
  margin-top: 10px;
  font-size: 13px;
  opacity: 0.7;
}
@keyframes breathe {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
  }
  50% {
    transform: scale(1.05);
    box-shadow: 0 30px 90px rgba(0,0,0,0.6);
  }
}
@keyframes light {
  0% {
    transform: translateX(-100%) rotate(25deg);
  }
  100% {
    transform: translateX(100%) rotate(25deg);
  }
}