canvas {
  max-width: 100%;
}

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

.content .matter-js-logo {
  margin: 0 0 3em 0;
  max-width: 230px;
}

.content .matter-js-logo img {
  margin: 0;
}

.details-nav {
  padding-bottom: 2em;
}

.details-nav ul {
  margin: 0;
  padding: 0;
}

.details-nav ul li:before {
  display: none;
}

.details-nav h3 {
  color: #aaa;
  font-size: 1em;
  margin: 1.2em 0;
  font-family: Helvetica, "Helvetica Neue", Arial, sans-serif;
}

.details-nav .external-link:after,
.details-nav .external-link:after {
  display: none;
}

.content .intro {
  margin: -0.2em 0 0 0;
}

.content .intro-links {
  white-space: nowrap;
  margin-top: 0.8em;
  display: block;
}

.content .intro-see {
  display: none;
}

@media only screen and (min-width: 520px) {
  .content .intro-links {
    margin-top: 0.5em;
  }

  .content .intro-see {
    display: inline;
  }
}

#canvas-container {
  opacity: 0;
  -webkit-transition: opacity 1000ms;
  transition: opacity 1000ms;
}

.main-row {
  display: flex;
  flex-direction: column-reverse;
}

.features {
  display: none;
}

#canvas-container {
  margin: 2em 0;
}

@media only screen and (min-width: 768px) {
  #canvas-container {
    margin: 0;
  }

  .features,
  .main-row {
    display: block;
  }

  #canvas-container {
    margin: 40px 0;
  }
}

#demo-select {
  padding: 8px 10px;
  margin: 0 1% 0 0;
  width: 40%;
  display: none;
}

#demo-reset {
  padding: 8px 20px;
  display: none;
}

#demo-view-source {
  display: none;
}

#gui-container {
  position: absolute;
  top: 680px;
  right: 0;
}

.gui-container-parent {
  position: relative;
}

#gui-container .dg > ul {
  height: auto !important;
}

.full-demo-link {
  padding: 0 0 0 80px;
}

.dg.ac {
  display: none;
}

.matter-demo {
  background: transparent;
}

@media only screen and (min-width: 768px) {
  #canvas-container {
    position: relative;
    padding-bottom: 75%;
  }

  .matter-demo {
    position: absolute;
  }
}

.matter-demo.matter-demo-inline {
  height: auto;
}

.matter-header-outer {
  display: none;
}