body{
  line-height: 1.5;
  padding: 1em;
}

p {
  padding-left: 20px;
}

div {
  display: block;
}

.test-container {
  margin-bottom: 10px;
  padding: 10px;
}

.videos{
  -webkit-columns: auto;
  -moz-columns: auto;
  columns: auto;
  max-width: 1000px;
}

.video-container {
  width: 720px;
}

@media (min-width: 640px) {
  .container {
    width:640px;
  }
}

.container {
  padding-left: 15px;
  padding-right: 15px;
  margin-left: auto;
  margin-right: auto;
}

#player {
  margin-left: auto;
  margin-right: auto;
}

#player-config-input {
  width: 100%;
  position: relative;
  box-sizing: border-box;
  background: #f7f7f7;
  color: #37474f;
}

textarea#input {
  vertical-align: middle;
  width: 100%;
  position: relative;
  box-sizing: border-box;
  background: #f7f7f7;
  color: #37474f;
}

.button-style {
  font-size: 14px;
}