body {
  background: #ffffff;
  font-family: "Lato", sans-serif;
}

h2 {
  color: #000;
  text-align: center;
  font-size: 2em;
  margin: 20px 0;
}

.warpper {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.tab {
  cursor: pointer;
  padding: 10px 20px;
  margin: 0px 2px;
  background: #32557f;
  display: inline-block;
  color: #fff;
  border-radius: 3px 3px 0px 0px;
  box-shadow: 0 0.5rem 0.8rem #00000080;
}

.panels {
  background: #fff;
  box-shadow: 0 2rem 2rem #00000080;
  min-height: 200px;
  width: 100%;
  max-width: 500px;
  border-radius: 3px;
  overflow: hidden;
  padding: 20px;
}

.panel {
  display: none;
  animation: fadein 0.8s;
}

@keyframes fadein {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.panel-title {
  font-size: 1.5em;
  font-weight: bold;
}

.radio {
  display: none;
}

#one:checked ~ .panels #one-panel,
#two:checked ~ .panels #two-panel,
#three:checked ~ .panels #three-panel {
  display: block;
}

#one:checked ~ .tabs #one-tab,
#two:checked ~ .tabs #two-tab,
#three:checked ~ .tabs #three-tab {
  background: #fff;
  color: #000;
  border-top: 3px solid #32557f;
}