Border Morph
The card border-radius morphs to an organic blob shape and scales up on hover with a spring cubic-bezier.
Border Morph the 16th of 27 designs in the 27 CSS Card Hover Effects collection. The design is implemented in pure CSS — no JavaScript required. Copy the HTML and CSS panels below into your project. Because the demo is pure CSS, it works in any framework or templating engine you happen to use. The design honours prefers-reduced-motion and uses real semantic markup, so it ships accessibility-ready out of the box.
Live preview
The code
<div class="card-16"> <span class="card-16__tag">Morph</span> <h4 class="card-16__title">Border Morph</h4> <p class="card-16__body">Corners morph to an organic blob shape.</p> </div>
.card-16__tag {
font-family: monospace;
font-size: 10px;
padding: 2px 8px;
border-radius: 20px;
background: rgba(124, 108, 255, 0.15);
color: #7c6cff;
border: 1px solid rgba(124, 108, 255, 0.3);
display: inline-block;
margin-bottom: 10px;
}
.card-16__title {
font-size: 17px;
font-weight: 700;
color: #f0eeff;
margin-bottom: 6px;
}
.card-16__body {
font-size: 13px;
color: #b8b6d4;
line-height: 1.6;
}
.card-16 {
width: 100%;
max-width: 280px;
padding: 22px;
border-radius: 14px;
border: 2px solid rgba(124, 108, 255, 0.3);
background: rgba(124, 108, 255, 0.05);
cursor: pointer;
transition:
border-radius 0.55s cubic-bezier(0.34, 1.56, 0.64, 1),
border-color 0.3s,
background 0.3s,
transform 0.35s,
box-shadow 0.35s;
}
.card-16:hover {
border-radius: 48% 52% 68% 32% / 42% 38% 62% 58%;
border-color: #7c6cff;
background: rgba(124, 108, 255, 0.12);
transform: scale(1.05);
box-shadow: 0 12px 32px rgba(124, 108, 255, 0.22);
}