html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    overflow: hidden;
    background: #000;
}

.webgl-content * {
    border: 0;
    margin: 0;
    padding: 0;
}

.webgl-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /*disable selection in games which select content when dragging mouse*/
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

#gameContainer canvas {
    display: block;
    background: #000;
}

.webgl-content .logo,
.webgl-content .progress {
    position: absolute;
    left: 50%;
    top: 50%;
    -webkit-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}

.webgl-content .logo {
    width: 260px;
    height: 60px;
    margin-top: -60px;
    color: #eaeaea;
    font: 600 34px/60px system-ui, -apple-system, "Segoe UI", sans-serif;
    letter-spacing: 0.06em;
    text-align: center;
}

.webgl-content .logo::after {
    content: "SLOPE";
}

.webgl-content .progress {
    height: 8px;
    width: 240px;
    border-radius: 4px;
    overflow: hidden;
    background: #1c1c1c;
}

.webgl-content .progress .empty {
    background: #1c1c1c;
    float: right;
    height: 100%;
}

.webgl-content .progress .full {
    background: #4ade80;
    float: left;
    height: 100%;
}

.fullscreen {
    position: absolute;
    bottom: 14px;
    left: 14px;
    z-index: 10;
    opacity: 0.35;
    transition: opacity 0.15s ease;
}

.fullscreen:hover {
    opacity: 1;
}

.fullscreen button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 8px;
    border: 1px solid #333;
    background: #111;
    color: #eaeaea;
    cursor: pointer;
}