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.placeholder {
display: inline-block;
min-height: 1em;
vertical-align: middle;
cursor: wait;
background-color: currentcolor;
opacity: $placeholder-opacity-max;
&.btn::before {
display: inline-block;
content: "";
}
}
// Sizing
.placeholder-xs {
min-height: .6em;
}
.placeholder-sm {
min-height: .8em;
}
.placeholder-lg {
min-height: 1.2em;
}
// Animation
.placeholder-glow {
.placeholder {
animation: placeholder-glow 2s ease-in-out infinite;
}
}
@keyframes placeholder-glow {
50% {
opacity: $placeholder-opacity-min;
}
}
.placeholder-wave {
mask-image: linear-gradient(130deg, $black 55%, rgba(0, 0, 0, (1 - $placeholder-opacity-min)) 75%, $black 95%);
mask-size: 200% 100%;
animation: placeholder-wave 2s linear infinite;
}
@keyframes placeholder-wave {
100% {
mask-position: -200% 0%;
}
}