<div class="wave"></div>
<div class="wave" style="--size: 40px;"></div>
<div class="wave" style="--size: 20px;"></div>
.wave {
--size: 50px;
--R: calc(var(--size)*1.28);
-webkit-mask:
radial-gradient(var(--R) at 50% calc(1.8*var(--size)),#000 99%,#0000 101%)
calc(50% - 2*var(--size)) 0/calc(4*var(--size)) 100%,
radial-gradient(var(--R) at 50% calc(-.8*var(--size)),#0000 99%,#000 101%)
50% var(--size)/calc(4*var(--size)) 100% repeat-x;
background: linear-gradient(90deg,red,blue);
height: 150px;
maring: 15px;
}
This Pen doesn't use any external CSS resources.
This Pen doesn't use any external JavaScript resources.