jellyfin-web/dashboard-ui/bower_components/emby-webcomponents/emby-button/emby-button.css

.emby-button {
    position: relative;
    display: inline-flex;
    align-items: center;
    box-sizing: border-box;
    margin: 0 .29em;
    text-align: center;
    font-size: inherit;
    font-family: inherit;
    color: inherit;
    outline-width: 0;
    -moz-user-select: none;
    -ms-user-select: none;
    -webkit-user-select: none;
    user-select: none;
    cursor: pointer;
    z-index: 0;
    padding: 1em .7em;
    font-weight: normal;
    vertical-align: middle;
    border: 0;
    vertical-align: middle;
    border-radius: 2px;
    /* These are getting an outline in opera tv browsers, which run chrome 30 */
    outline: none !important;
    position: relative;
    overflow: hidden;
    font-weight: 500;
    /* Disable webkit tap highlighting */
    -webkit-tap-highlight-color: rgba(0,0,0,0);
}

    .emby-button::-moz-focus-inner {
        border: 0;
    }

.button-flat {
    background: transparent;
    box-shadow: none;
    text-transform: uppercase;
}

.emby-button-focusscale {
    transition: transform 180ms ease-out !important;
    -webkit-transform-origin: center center;
    transform-origin: center center;
}

    .emby-button-focusscale:focus {
        transform: scale(1.16);
        z-index: 1;
    }

.emby-button > i {
    /* For non-fab buttons that have icons */
    font-size: 1.36em;
    width: auto;
    height: auto;
}

.fab {
    display: inline-flex;
    border-radius: 50%;
    background-color: rgba(170,170,190, .4);
    padding: .6em;
    box-sizing: border-box;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    margin: 0;
}

    .fab > i {
        height: auto;
        width: auto;
        vertical-align: middle;
        font-size: 2.85em;
    }

.emby-button-noflex {
    display: inline-block;
    white-space: nowrap;
}

.fab.mini {
    padding: 8px;
}

    .fab.mini > i {
        height: auto;
        width: auto;
        font-size: 1.72em;
    }

.emby-button.block {
    display: block;
    align-items: center;
    justify-content: center;
    margin: .25em 0;
    width: 100%;
}

.raised:focus {
    box-shadow: 0 8px 10px 1px rgba(0, 0, 0, 0.14), 0 3px 14px 2px rgba(0, 0, 0, 0.12), 0 5px 5px -3px rgba(0, 0, 0, 0.4);
    transition: box-shadow 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

.emby-button > i + span {
    margin-left: .5em;
}

.emby-button > span + i {
    margin-left: .5em;
}

.paper-icon-button-light {
    position: relative;
    display: inline-flex;
    align-items: center;
    box-sizing: border-box;
    margin: 0 .29em;
    background: transparent;
    text-align: center;
    font-size: inherit;
    font-family: inherit;
    color: inherit;
    outline-width: 0;
    -moz-user-select: none;
    -ms-user-select: none;
    -webkit-user-select: none;
    user-select: none;
    cursor: pointer;
    z-index: 0;
    min-width: initial;
    min-height: initial;
    width: auto;
    height: auto;
    padding: 8px;
    font-weight: normal;
    vertical-align: middle;
    border: 0;
    vertical-align: middle;
    /* These are getting an outline in opera tv browsers, which run chrome 30 */
    outline: none !important;
    position: relative;
    overflow: hidden;
    font-weight: 500;
    border-radius: 50%;
    /* Disable webkit tap highlighting */
    -webkit-tap-highlight-color: rgba(0,0,0,0);
    justify-content: center;
}

    .paper-icon-button-light::-moz-focus-inner {
        border: 0;
    }

    .paper-icon-button-light[disabled] {
        opacity: .3;
    }

    .paper-icon-button-light > i {
        width: 1em;
        height: 1em;
        font-size: 1.6em;
        /* Make sure its on top of the ripple */
        position: relative;
        z-index: 1;
        vertical-align: middle;
    }

    .paper-icon-button-light > img {
        width: 1.72em;
        /* Can't use 100% height or it will stretch past the boundaries in safari */
        /*height: 100%;*/
        max-height: 100%;
        /* Make sure its on top of the ripple */
        position: relative;
        z-index: 1;
        vertical-align: middle;
    }

    .paper-icon-button-light:after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        transition: opacity .3s ease-out;
        background: currentcolor;
        opacity: 0;
    }

    .paper-icon-button-light:focus {
        color: #52B54B;
    }

        .paper-icon-button-light:focus:after {
            opacity: .2;
        }

.emby-button-ripple-effect, .paper-icon-button-light-ripple-effect {
    position: absolute;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    top: 50%;
    left: 50%;
    background: currentcolor;
    animation: ripple-animation .8s;
    opacity: 0.25;
    transform-origin: center center;
    transform: translate3d(0, 0, 0);
}

@keyframes ripple-animation {
    from {
        transform: none;
        opacity: 0.5;
    }

    to {
        transform: scale(20);
        opacity: 0;
    }
}

.emby-button-foreground {
    position: relative;
    z-index: 1;
}

.icon-button-focusscale {
    transition: transform 180ms ease-out !important;
    -webkit-transform-origin: center center;
    transform-origin: center center;
}

    .icon-button-focusscale:focus {
        transform: scale(1.3);
        z-index: 1;
    }