html, body {
  width: 0;         /* for fixing iOS iframe issues */
  min-width: 100%;  /* for fixing iOS iframe issues */
  overflow-x: hidden;
  position: relative;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  background-color: #222;
  text-align: center;
  color: #bbb;
  font-family: "Signika Negative", sans-serif;
  font-weight: 300;
  font-size: 18px;
  padding: 10px 0;
}
h1 {
  margin: 0;
  font-size: 50px;
  text-align: left;
}
h2 {
  font-size: 38px;
  margin-bottom: 0;
}
h1, h2, h3 {
  color: white;
  font-weight: 400;
}
h3 {
  margin-bottom: -12px;
}
#header {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
}
a {
  color: #88ce02;
  text-decoration: none;
  font-weight: 400;
}
a:hover {
  text-decoration: underline;
}
#container {
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: visible;
}
.box {
  background-color: #88ce02;
  position: relative;
}
.box:before {
  padding-top:100%;
  content:"";
  display:block;
}
#instructions {
  margin-top: 35px;
  padding:0 16px 16px 16px;
  text-align: left;
  max-width: 1000px;
  display: inline-block;
}

.code {
  background-color: #111;
  padding: 12px;
  border-radius: 10px;
}
.featured {
  color: white;
}
strong {
  color: white;
  font-weight: 400;
  font-size: 20px;
}
.question {
  color: white;
  font-size: 21px;
  font-weight: 400;
  display: block;
}
#controls {
  text-align: center;
  display:flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: start;
}
.control {
  display: flex;
  align-items: flex-start;
  font-family: "Consolas", "Bitstream Vera Sans Mono", "Courier New", Courier, monospace;
  color: white;
  margin-bottom: 10px;
}
.control-label {
  margin-top: 10px;
}
.control-vertical {
  display: flex;
  flex-direction: column;
  align-content: flex-start;
  text-align: left;
  justify-content: flex-start;
  padding: 6px 8px;
  border-radius: 9px;
  background-color: #111;
  margin-right: 18px;
  color: #bbb;
}

.fr-video {
  display: block;
  position: relative;
  width: 100%;
  height: 0;
  float: left;
  padding-bottom: 56.25%;
  margin: 12px 0 35px 0;
}

.fr-video iframe {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  border: 2px solid #444;
}

#instructions li {
  margin-bottom: 10px;
}

#slider {
  width:560px;
  margin:20px 0;
}


@media only screen and (max-width: 640px) {
  h1 {
    font-size: 30px;
    line-height: 30px;
  }
  #controls {
    align-items: flex-start;
    justify-content: flex-start;
  }
}