Scanline
CRT-style horizontal scanlines scroll over the card surface on hover using a repeating-linear-gradient animation.
Scanline the 8th 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-08"> <div class="card-08__scanlines"></div> <span class="card-08__tag">SYSTEM</span> <h4 class="card-08__title">Scanline</h4> <p class="card-08__body">CRT scanlines sweep the surface on hover.</p> </div>
/* Demo 08 overrides shared __tag/__title/__body so the green CRT palette
reads correctly against the black card background. Inlined here so a
user pasting just the demo gets the full effect with no shared prelude. */
.card-08__tag {
font-family: monospace;
font-size: 10px;
padding: 2px 8px;
border-radius: 20px;
background: rgba(30, 217, 138, 0.12);
color: #1ed98a;
border: 1px solid rgba(30, 217, 138, 0.3);
display: inline-block;
margin-bottom: 10px;
}
.card-08__title {
font-size: 17px;
font-weight: 700;
color: #1ed98a;
margin-bottom: 6px;
}
.card-08__body {
font-size: 13px;
color: rgba(30, 217, 138, 0.65);
line-height: 1.6;
}
.card-08 {
width: 100%;
max-width: 280px;
position: relative;
overflow: hidden;
padding: 22px;
border-radius: 14px;
background: #0a0a0a;
border: 1px solid rgba(30, 217, 138, 0.2);
cursor: pointer;
font-family: monospace;
color: #1ed98a;
transition: box-shadow 0.3s;
}
.card-08:hover {
box-shadow:
0 0 24px rgba(30, 217, 138, 0.18),
inset 0 0 24px rgba(30, 217, 138, 0.04);
}
.card-08__scanlines {
position: absolute;
inset: 0;
pointer-events: none;
background: repeating-linear-gradient(
to bottom,
transparent 0,
transparent 3px,
rgba(0, 0, 0, 0.22) 3px,
rgba(0, 0, 0, 0.22) 4px
);
opacity: 0;
transition: opacity 0.4s;
}
.card-08:hover .card-08__scanlines {
opacity: 1;
animation: card-08-scroll 4s linear infinite;
}
@keyframes card-08-scroll {
0% { background-position: 0 0; }
100% { background-position: 0 40px; }
}