style.css

html {
  width: 100%;
  height: 100%;
}

body {
  font: 14px helvetica neue, helvetica, arial, sans-serif;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

#cy {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  right: 17em;
}

.config {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 17em;
  background: rgba(0, 0, 0, 0.666);
  box-sizing: border-box;
  padding: 1em;
  color: #fff;
  transition-property: opacity;
  transition-duration: 250ms;
  transition-timing-function: ease-out;
  overflow: auto;
  z-index: 1;
}

.param {
  margin-bottom: 1em;
}

.preamble {
  margin-bottom: 2em;
}

p {
  margin: 0.5em 0;
  font-size: 0.8em;
}

.param button {
  width: 3em;
  margin-right: 0.25em;
  text-align: center;
}

a,
a:hover {
  color: #8BB0D0;
}

.label {
  display: block;
}

.slider {
  display: block;
  width: 100%;
  margin: 0;
}

.config-toggle {
  position: absolute;
  right: 0;
  top: 0;
  padding: 1em;
  margin: 0.2em;
  cursor: pointer;
  color: #fff;
  z-index: 9999999;
}

.config-closed .config {
  opacity: 0;
  pointer-events: none;
}

.config-closed #cy {
  right: 0;
}

.tip-link {
  display: block;
}

@media (max-width: 600px){
  #cy {
    right: 0;
  }
}