input.flip#checkbox(type="checkbox")
.checkbox
  label(for="checkbox")
.wrapper
  h1 day one.
  .card
    .side.front
      .dot
      .dot.active
      .dot
      p Hey you.
    .side.back
      .dot.active
      p Go make some stuff.
.shameless-plug
  p hey come check me ouuuutttt.
  a(href="https://twitter.com/xdesro", target="_blank")
    .icon(data-icon="ei-sc-twitter",
      data-size="s")
  a(href="https://github.com/xdesro", target="_blank")
    .icon(data-icon="ei-sc-github",
      data-size="s")
  a(href="https://henry.codes", target="_blank")
    .icon(data-icon="ei-link",
      data-size="s")
View Compiled
$tan: #FFEFE5;
$green: #34CBAE;
$blue: #3B465C;
$grey: #DDDCC8;
$transition: all 0.2s ease;
body {
  font-family: "futura";
  overflow: hidden;
}
.wrapper {
  display: flex;
  flex-direction: row;
  width: 100vw;
  height: 100vh;
  padding: 1vh;
  transition: $transition;
  background: #FFEFE5;
  align-items: center;
  justify-content: space-evenly;
  h1 {
    font-size: 12vh;
    position: relative;
    z-index: 2;
    transition: $transition;
    text-align: center;
    color: $green;
  }
  &:before {
    position: absolute;
    z-index: 0;
    left: 0;
    content: url(https://res.cloudinary.com/xdesro/image/upload/v1507078457/flourish_xebj81.svg);
    transition: $transition;
  }
  &:after {
    position: absolute;
    right: 0;
    content: url(https://res.cloudinary.com/xdesro/image/upload/q_48/v1507128037/flourish-blue_wkuqd1.svg);
    transition: $transition;
    transform: translateX(5vh);
    opacity: 0;
  }
}
.card {
  position: relative;
  z-index: 2;
  width: 40vh;
  height: 70vh;
  transition: $transition;
}
.side {
  position: absolute;
  width: 100%;
  height: 100%;
  transition: all 0.4s ease;
  border: 2vh solid white;
  animation-fill-mode: both;
  transform-style: preserve-3d;
  backface-visibility: hidden;
  perspective: 600px;
  p {
    font-size: 24px;
    font-weight: lighter;
    font-style: italic;
    padding: 2vh;
    text-transform: lowercase;
  }
}
.front {
  transform: rotateX(0) rotateY(0deg);
  background: $tan;
  opacity: 1;
  p {
    color: $green;
  }
}
.back {
  overflow: hidden;
  opacity: 0;
  transform: rotateX(0) rotateY(180deg);
  background-color: $blue;
  background-image: url(https://res.cloudinary.com/xdesro/image/upload/q_37/v1507161529/flourish-blue-vert_lilazi.png);
  background-position: -78% 74%;
  background-size: 120%;
  p {
    color: $grey;
  }
}
.dot {
  position: absolute;
  width: 12vh;
  height: 12vh;
  padding: 0;
  border-radius: 100%;
  .front & {
    background: linear-gradient(to bottom, $green, darken($green, 15%));
    &:before {
      z-index: 2;
      transform: scaleX(-1);
    }
    &:after {
      position: absolute;
      z-index: 0;
      top: 0;
      right: 0;
      bottom: 0;
      left: 0;
      content: "";
      border-radius: 100%;
      background: url(https://res.cloudinary.com/xdesro/image/upload/q_36/v1507165531/flourish-green-vert_ojslrs.png);
      background-size: 50vh;
    }
  }
  .back & {
    background: $grey;
    background-image: url(https://res.cloudinary.com/xdesro/image/upload/v1507161431/rotated-grey_p9bx0a.png);
    background-size: cover;
  }
  &.active {
    top: 50%;
    right: 0;
    left: 0;
    width: 90%;
    height: auto;
    margin: 0 auto;
    padding-bottom: 90%;
    transform: translateY(-50%);
    &:before {
      position: absolute;
      right: 0;
      bottom: 0;
      left: 0;
      width: 100%;
      padding-bottom: 100%;
      content: "";
      border-radius: 0 0 100% 100%;
      background-image: url(https://res.cloudinary.com/xdesro/image/upload/q_49/v1507162121/dear_d1gwj5.png);
      background-size: cover;
    }
  }
  .front & {
    &:first-of-type {
      top: 2vh;
      right: 2vh;
      &:after {
        transform: rotate(125deg);
        background-position: 50% 50%;
        background-size: 40vh;
      }
    }
    &:last-of-type {
      bottom: 2vh;
      left: 2vh;
      &:after {
        background-position: 25% 50%;
        background-size: 40vh;
      }
    }
  }
}
.flip {
  position: absolute;
  z-index: 30;
  bottom: 1vh;
  left: 1vh;
  visibility: hidden;
  width: 10vh;
  height: 3vh;
  ~ .checkbox {
    position: absolute;
    z-index: 2;
    bottom: 2vh;
    left: 1vh;
    display: block;
    width: 22px;
    height: 22px;
    cursor: pointer;
    transition: all 0.4s ease;
    &:before {
      content: "click this guy.";
      display: block;
      position: absolute;
      width: 100vh;
      bottom: 3vh;
      left: 1vh;
      color: $green;
      transition: $transition;
    }
    &:after {
      position: absolute;
      top: 14px;
      left: 14px;
      width: 52px;
      height: 2px;
      content: "";
      border-radius: 50px;
      background: #DBCDC3;
    }
    label {
      position: absolute;
      z-index: 1;
      top: 4px;
      left: 4px;
      display: block;
      width: 22px;
      height: 22px;
      cursor: pointer;
      transition: all 0.4s ease;
      border-radius: 50px;
      background: white;
      box-shadow: 0 2px 5px 0 rgba(0,0,0,0.3);
      &:after {
        position: absolute;
        top: 6px;
        left: 6px;
        width: 10px;
        height: 10px;
        content: "";
        border-radius: 50px;
        background: $green;
        box-shadow: inset 0 1px 1px rgba(0,0,0,1), 0 1px 0 rgba(255,255,255,0.9);
      }
    }
  }
  &:checked {
    + .checkbox {
      &:before {
        color: $grey;
      }
      &:after {
        background: darken($blue, 10%);
      }
      label {
        left: 54px;
        &:after {
          background: $grey;
        }
      }
    }
    ~ .wrapper {
      background: $blue;
      &:before {
        transform: translateX(-5vh);
        opacity: 0;
      }
      &:after {
        transform: translateX(0);
        opacity: 1;
      }
      h1 {
        color: $grey;
      }
      .side {
        &.front {
          transform: rotateX(0) rotateY(180deg);
          opacity: 0;
        }
        &.back {
          opacity: 1;
          transform: rotateX(0) rotateY(0deg);
        }
      }
    }
    ~ .shameless-plug {
      color: #222937;
      .icon {
        fill: #222937;
      }
    }
  }
}
.shameless-plug {
  position: absolute;
  right: 0;
  bottom: 0;
  display: flex;
  width: 50%;
  color: #DCCDC3;
  align-items: center;
  justify-content: flex-end;
  .icon {
    fill: #DCCDC3;
  }
}

@media (max-width: 860px) {
  .wrapper {
    flex-direction: column;
    h1 {
      font-size: 10vw;
    }
  }
  .flip {
    z-index: 101;
    ~.checkbox {
      z-index: 100;
    }
  }
}
View Compiled
// ¯\_(ツ)_/¯ //

External CSS

  1. https://cdn.jsdelivr.net/npm/evil-icons@1.9.0/assets/evil-icons.min.css

External JavaScript

  1. https://cdn.jsdelivr.net/npm/evil-icons@1.9.0/assets/evil-icons.min.js