freeCodeCamp/client/less/sk-wave.less

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2016-10-29 05:14:39 +00:00
// original source:
// https://github.com/tobiasahlin/SpinKit
@duration: 3s;
@delayRange: 1s;
.create-wave-child(@numOfCol, @iter: 2) when (@iter <= @numOfCol) {
div:nth-child(@{iter}) {
animation-delay: -(@duration - (@delayRange / (@numOfCol - 1)) * (@iter - 1));
}
.create-wave-child(@numOfCol, (@iter + 1));
}
.sk-wave {
height: 100px;
margin: 100px auto;
text-align: center;
width: 50px;
> div {
animation: sk-stretchdelay @duration infinite ease-in-out;
background-color: @brand-primary;
display: inline-block;
height: 100%;
margin-right: 2px;
width: 6px;
}
.create-wave-child(5)
}
@keyframes sk-stretchdelay {
0%, 40%, 100% {
transform: scaleY(0.4);
}
20% {
transform: scaleY(1.0);
}
}