* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: "Architects Daughter", cursive;
}

.container {
  width: 100%;
}

.panels {
  min-height: 100vh;
  display: flex;
}

.panel {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  font-size: 40px;
  border: 2px solid black;
  flex: 1;
  transition: flex 0.7s cubic-bezier(0.61, 0.19, 0.7, -0.11),
    font-size 0.4s cubic-bezier(0.61, -0.19, 0.7, -0.11);
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
  overflow: hidden;
}

.panel > * {
  display: flex;
  flex: 1 0 auto;
  align-items: center;
  justify-content: center;
  color: white;
  text-shadow: 9px 6px 11px #2e2929;
  transition: transform 0.2s cubic-bezier(0.61, 0.19, 0.7, -0.11);
}

.panel > *:first-child {
  transform: translateY(-100%);
}

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

.panel > *:last-child {
  transform: translateY(100%);
}

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

.open {
  flex: 5;
  font-size: 60px;
}

.panel1 {
  background-image: url(./image/s1.jpg);
}

.panel2 {
  background-image: url(./image/s2.jpg);
}

.panel3 {
  background-image: url(./image/s3.jpg);
}

.panel4 {
  background-image: url(./image/s4.jpg);
}

.panel5 {
  background-image: url(./image/s5.jpg);
}