button/styles.css at main · gondo/button · GitHub

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.frame {
    /* key dimensions */
    --dimension: 200px;

    /* Movement distances */
    --hover-travel: 3px;
    --press-travel: calc(var(--dimension) / 10);

    /* Color customization */
    --color: black;
    --brightness: 1;
    --blend-mode: color;

    /* Transition settings */
    --transition-duration: 0.4s;
    --transition-easing: linear(0, 0.008 1.1%, 0.031 2.2%, 0.129 4.8%, 0.257 7.2%, 0.671 14.2%, 0.789 16.5%, 0.881 18.6%, 0.957 20.7%, 1.019 22.9%, 1.063 25.1%, 1.094 27.4%, 1.114 30.7%, 1.112 34.5%, 1.018 49.9%, 0.99 59.1%, 1);

    /* Start animation settings */
    --fade-duration: .3s;
    --fade-delay: .3s;
    --start-scale: .8;

    /* Style */
    position: relative;
    width: var(--dimension);
    height: var(--dimension);
    cursor: pointer;
    container-type: inline-size;
    touch-action: manipulation;
    overflow: hidden;

    /* Start invisible and scaled down, then fade in and zoom in */
    opacity: 0;
    transform: scale(var(--start-scale));
    animation: frameStartAnimation var(--fade-duration) ease-out var(--fade-delay) forwards;
}

.frame:focus-visible {
    outline: none;
}

.frame,
.frame .frame__key,
.frame .frame__text
{
    -webkit-user-select: none; /* ios Safari */
    user-select: none;
}

.frame img {
    /* Disable image dragging on MacOS Safari */
    -webkit-user-drag: none;
}

.frame .frame__base {
    width: 100%; height: 100%;
}

.frame .frame__key {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    filter: brightness(var(--brightness));
    -webkit-appearance: none;

    transition-property: all;
    transition-duration: var(--transition-duration);
    transition-timing-function: var(--transition-easing);
}

.frame .frame__cover {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%; height: 100%;
}

.frame:hover .frame__key,
.frame:hover .frame__text
{
    margin-top: var(--hover-travel);
}

.frame:active .frame__key,
.frame:active .frame__text,
/* :active to support Android browsers, we use JS and __active */
.frame.__active .frame__key,
.frame.__active .frame__text
{
    margin-top: var(--press-travel);
}

.frame .frame__text {
    font-family: sans-serif;
    color: white;
    white-space: nowrap;

    position: absolute;
    width: 100%;
    height: 100%;
    top: 50%;
    left: 50%;
    text-align: center;
    align-content: center;
    translate: -50% -50%;
    transform: rotateY(0deg) rotateX(52.3deg) rotateZ(29deg) translateY(-28%) translateX(-16%);
    margin: 0;
    padding: 0;

    transition-property: all;
    transition-timing-function: var(--transition-easing);
    transition-duration: var(--transition-duration);
}

.frame .frame__text {
    font-size: calc(var(--dimension) / 10);
}
@container (min-width: 0px) {
    .frame .frame__text {
        font-size: 10cqw;
    }
}

/* Fade-in and zoom-in animation keyframes */
@keyframes frameStartAnimation {
    from {
        opacity: 0;
        transform: scale(var(--start-scale));
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}