liabru-matter-js/demo/css/style.css

body { 
    background: #222;
    font-family: Georgia, Times, "Times New Roman", serif;
    color: #aaa;
}

body.mobile {
    font-size: 0.9em;
}

* { 
    padding: 0; 
    margin: 0; 
}

h1 {
    color: #fff;
    display: block;
    margin: 0 0 1em 0;
    font-weight: normal;
    font-size: 30px;
}

.nav-sep {
    padding: 0 5px;
}

a, a:link, a:visited, a:active, a:hover {
    color: #aaa;
    text-decoration: none;
    border-bottom: 1px solid #555;
    padding: 0 0 2px 0;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 6% 300px 0 6%;
}

.is-mobile .container {
    padding: 6% 6% 0 6%;
}

.is-fullscreen #canvas-container {
    width: 100%;
    height: 100%;
}

.is-fullscreen #canvas-container canvas {
    margin: 0;
    max-width: 100%;
    max-height: 100%;
}

.mobile .container {
    padding: 50px 40px 0 40px;
}

canvas {
    margin: 40px 0;
    max-width: 100%;
}

.mobile canvas {
    margin: 0;
}

canvas:active { 
    cursor: pointer;
    cursor: -webkit-grabbing;
}

.controls-container {
    margin: 40px 0 0 0;
    width: 100%;
}

#canvas-container {
    margin: 20px 0;
}

#demo-select {
    padding: 8px 10px;
    width: 40%;
    color: #000;
}

#demo-reset {
    padding: 8px 10px;
    color: #000;
}

#demo-start {
    display: block;
    margin: 50px 0;
    padding: 20px 40px;
    width: 200px;
    color: #000;
}