.tab-wrap {
  display: flex;
  flex-wrap: wrap;
  margin:20px 0;
}
.tab-wrap:after {
  content: '';
  height: 3px;
  background: DeepSkyBlue;
  display: block;
  order: -1;
}
.tab-label {
  color: White;
  background: LightGray;
  font-weight: bold;
  text-shadow: 0 -1px 0 rgba(0,0,0,.2);
  white-space: nowrap;
  text-align: center;
  padding: 10px .5em;
  order: -1;
  position: relative;
  z-index: 1;
  cursor: pointer;
  border-radius: 5px 5px 0 0;
  flex: 1;
}
.tab-label:not(:last-of-type) {
  margin-right: 5px;
}
.tab-content {
  width: 100%;
  height: 0;
  overflow: hidden;
  opacity: 0;
}
/* アクティブなタブ */
.tab-switch:checked+.tab-label {
  background: DeepSkyBlue;
}
.tab-switch:checked+.tab-label+.tab-content {
  height: auto;
  overflow: auto;
  padding: 15px;
  opacity: 1;
  transition: .5s opacity;
  box-shadow: 0 0 3px rgba(0,0,0,.2);
}
/* ラジオボタン非表示 */
.tab-switch {
  display: none;
}