public/sass/tutorial.scss

@import "colors";

#tutorial {
  position: fixed;
  display: block;
  z-index: 9999;
  background-color: $dark-green;
  border-radius: 15px;
  padding: 5px;
  top:    2%;
  bottom: 2%;
  left:   5%;
  right:  5%;
  &:not(.active) {
    display: none;
  }
  &.active {
    display: block;
  }
  > i,
  > a > i {
    font-size: 20pt;
    color: $dark-green;
    position: absolute;
    background-color: rgba(255,255,255,0.5);
    z-index: 100;
    top: 10pt;
    right: 20pt;
    cursor: pointer;
  }
  > a > i {
    right: 40pt;
  }
  iframe {
    width: 100%;
    min-height: 100%;
    border: {
      width: 0;
      radius: 10px;
    }
    background: {
      image: url('/img/crab.svg');
      size: 10%;
      repeat: no-repeat;
      position: center center;
      color: white;
    }
  }
}

div.test {
  display: block;
  border-left: 10px solid $dark-green;
  margin: 1em;
  padding-left: 5px;
  p {
    color: black;
    &.fail {
      font-weight: bold;
      color: red;
    }
    &.pass {
      font-weight: bold;
      color: green;
    }
  }
}