webamp/css/webamp.css

/* Rules used by all windows */

#webamp {
    position: absolute;
    top: 0;
    left: 0;
    /*
     * Force a new rendering context. This allows the individual windows to be
     * positioned `fixed` relative to their parent (this div).
     * We need individual windows to be `position: fixed;` so that they don't
     * affect the scroll size of the browser window. If they did affect the
     * scroll size of the browser window, we would be unable to detect the
     * natural size of the window to reposition ourselves when the browser
     * window size changes.
     *
     * It's worth noting that this won't work in IE, but that's okay, because
     * we don't work in IE anyway. `Webamp.browserIsSupported()` will return
     * false because IE does not support the Web Audio API.
     *
     * - https://github.com/captbaritone/webamp/pull/669#issuecomment-427225148
     * - https://stackoverflow.com/a/38796408/1263117
     * - https://stackoverflow.com/a/20830413/1263117
     */

    transform: translateZ(0);
}

/* Prevent accidental highlighting */
#webamp canvas {
    -webkit-user-select: none;
    -moz-user-select: none;
    user-select: none;
}

#webamp * {
    /* Some environments globably change the box-sizing */
    box-sizing: content-box;
    -webkit-box-sizing: content-box;
}

#webamp *:focus {
    outline: 0;
}

/* Range input css reset */
#webamp input[type="range"] {
    -webkit-appearance: none;
    margin: 0;
    padding: 0;
    background: none;
    border: none;
}
#webamp input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    border: none;
    border-radius: 0;
    background: none;
}
#webamp input[type="range"]::-moz-range-thumb {
    border: none;
    border-radius: 0;
    background: none;
}
#webamp input[type="range"]::-moz-range-track {
    border: none;
    background: none;
}
#webamp input[type="range"]:focus {
    outline: none;
}
#webamp input[type="range"]::-moz-focus-outer {
    border: 0;
}

#webamp a:focus {
    outline: none;
}

/* Animation */
@keyframes blink {
    0% {
        opacity: 1;
    }
    50% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}
@-webkit-keyframes blink {
    0% {
        opacity: 1;
    }
    50% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

#webamp .character {
    display: inline-block;
    vertical-align: top;
    width: 5px;
    height: 6px;
    /* background-image: TEXT.BMP via Javascript */
    text-indent: -9999px;
}

#webamp .window {
    position: absolute;
    /* Ask the browser to scale showing large pixels if possible */
    image-rendering: -moz-crisp-edges; /* Firefox */
    image-rendering: -o-crisp-edges; /* Opera */
    image-rendering: -webkit-optimize-contrast; /* Safari */
    image-rendering: pixelated; /* Only in Chrome > 40 */
    -ms-interpolation-mode: nearest-neighbor; /* IE (non-standard property) */

    /* Work around rendering bug with clip-path */
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
}

#webamp .window.doubled {
    transform: translateZ(0) scale(2);
    transform-origin: top left;
    -moz-transform: translateZ(0) scale(2);
    -moz-transform-origin: top left;
    -webkit-transform: translateZ(0) scale(2);
    -webkit-transform-origin: top left;
}