html {
  font-size: 20px;
  font-weight: 200;
}

.panels {
  overflow: hidden;
  float: right;

  width: 40% !important;
}

.panel {
  background: #6B0F9C;
  box-shadow: inset 0 0 0 5px rgba(255,255,255,0.1);
  color: white;
  transition:
    font-size 0.7s cubic-bezier(0.61,-0.19, 0.7,-0.11),
    flex 0.7s cubic-bezier(0.61,-0.19, 0.7,-0.11),
    background 0.2s;
  font-size: 20px;
  background-size: cover;
  background-position: center;
  display: flex;
  flex-direction: column;
}

.panel > * {
  margin: 0;
  width: 100%;
  transition: transform 250ms;
  flex: 1 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
}

.panel > *:nth-child(2) { transform: translateX(100%);}
.panel.open-active > *:nth-child(2) { transform: translateX(0);}
.panel > *:last-child { transform: translateX(100%); }
.panel.open-active > *:last-child { transform: translateX(0); }

.panel p {
  font-family: Lato, sans-serif;
  color: white;
  font-size: 0.8em;
}

.panel p:nth-child(1) {
  font-size: 1em;
}

.panel.open {
  flex: 5;
  font-size: 2em;
}

@media only screen and (max-width: 600px) {
  .panel p {
    font-size: 0.8em;
  }
}