html {
  box-sizing: border-box;
  background-color: #0da10d;
  font-family: 'Helvetica Neue', 'Arial Narrow', sans-serif;
  font-size: 20px;
  font-weight: 200;
}

body {
  height: 100vh;
  margin: 0;
}

*, *:before, *:after {
  box-sizing: inherit;
}

.panels {
  height: 100vh;
  overflow: hidden;
  display: flex;
}

.panel {
  color: white;
  box-shadow: inset 0 0 0 5px rgba(255,255,255,0.1);
  text-align: center;
  align-items: center;
  font-size: 20px;
  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;
  background-size: cover;
  background-position: center;
  flex: 1;
  justify-content: center;
  display: flex;
  flex-direction: column;

}

.panel1 {
    background-image: url('./images/bubblejettingemperors.jpg');
}

.panel2 {
  background-image: url('./images/thegoodlife.jpg');
}

.panel3 {
  background-image: url('./images/elephantsattwilight.jpg');
}

.panel4 {
  background-image: url('./images/loungingleopard.jpg');
}

.panel5 {
  background-image: url('./images/crabsurprise.jpg');
}

.panel < * {
  margin: 0;
  width: 100%;
  transition: transform 0.5s;
  flex: 1 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
}

.panel > *:first-child {
  transform: translateY(-500%);

}

.panel.open-active > *:first-child {
  transform: translateY(0);
}

.panel > *:last-child {
  transform: translateY(500%);
}

.panel.open-active > *:last-child {
  transform: translateY(0);
}

.panel p {
  text-transform: uppercase;
  font-family: 'Amatic SC', cursive;
  text-shadow: 0 0 4px rgba(0,0,0,0.72), 0 0 14px rbga(0,0,0.45);
  font-size: 2em;
}

.panel p:nth-child(2) {
  font-size: 4em;
}

.panel.open {
  flex: 5;
  font-size: 40px;
}

@media only screen and (max-width: 480px) {
  .panel p {
    font-size: 18px;
  }
  .panel p:nth-child(2) {
    font-size: 25px;
  }
  .panel < * {
    margin: 0;
    width: 100%;
    transition: transform 0.5s;
    flex: 1 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .panel > *:first-child {
    transform: translateY(-1200%);

  }

  .panel.open-active > *:first-child {
    transform: translateY(0);
  }

  .panel > *:last-child {
    transform: translateY(1200%);
  }

  .panel.open-active > *:last-child {
    transform: translateY(0);
  }
}

@media  (max-device-width: 480px) and (orientation: landscape) {
  .panel p {
    font-size: 18px;
  }
  .panel p:nth-child(2) {
    font-size: 25px;
  }

  .panel < * {
    margin: 0;
    width: 100%;
    transition: transform 0.5s;
    flex: 1 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .panel > *:first-child {
    transform: translateY(-1200%);

  }

  .panel.open-active > *:first-child {
    transform: translateY(0);
  }

  .panel > *:last-child {
    transform: translateY(1200%);
  }

  .panel.open-active > *:last-child {
    transform: translateY(0);
  }

}