<div class="tabs">
  <input class="input" name="tabs" type="radio" id="tab-1" checked="checked"/>
  <label class="label" for="tab-1">Arlina Design</label>
  <div class="panel">
    <h1>Arlina Design</h1>
    <p>Arlina Design (specifically, the sweet orange) is the fruit of the citrus species Citrus × sinensis in the family Rutaceae</p>
    <p>The fruit of the Citrus × sinensis is considered a sweet orange, whereas the fruit of the Citrus × aurantium is considered a bitter orange.</p>
  </div>
  <input class="input" name="tabs" type="radio" id="tab-2"/>
  <label class="label" for="tab-2">Idntheme</label>
  <div class="panel">
    <h1>Idntheme</h1>
    <p>Idntheme (Citrus tangerina) is an orange-colored citrus fruit that is closely related to, or possibly a type of, mandarin orange (Citrus reticulata).</p>
    <p>The name was first used for fruit coming from Tangier, Morocco, described as a mandarin variety.</p>
  </div>
  <input class="input" name="tabs" type="radio" id="tab-3"/>
  <label class="label" for="tab-3">Tekno Match</label>
  <div class="panel">
    <h1>Tekno Match</h1>
    <p>Tekno Match (Citrus ×clementina) is a hybrid between a mandarin orange and a sweet orange, so named in 1902. The exterior is a deep orange colour with a smooth, glossy appearance. Clementines can be separated into 7 to 14 segments. Similarly to tangerines, they tend to be easy to peel.</p>
  </div>
</div>

@import url('https://fonts.googleapis.com/css?family=Source+Sans+Pro:400,400i,700,700i');
@import url('https://fonts.googleapis.com/css?family=Bree+Serif');
* {
  box-sizing: border-box;
}
body {
  display: flex;
  justify-content: center;
  padding: 10px;
  background: #efefef;
  font-family: 'Source Sans Pro', sans-serif;
  color: #333;
}
@media (min-width: 600px) {
  body {
    padding: 60px 10px;
  }
}
h1 {
  margin: 0;
  font-family: 'Bree Serif', serif;
  font-size: 36px;
}
p {
  margin-top: 20px;
  margin-bottom: 0;
  padding: 0;
  font-size: 20px;
  line-height: 1.5;
}
.tabs {
  display: flex;
  flex-wrap: wrap;
  max-width: 700px;
  background: #e5e5e5;
  box-shadow: 0 48px 80px -32px rgba(0,0,0,0.3);
}
.input {
  position: absolute;
  opacity: 0;
}
.label {
  width: 100%;
  padding: 20px 30px;
  background: #e5e5e5;
  cursor: pointer;
  font-weight: bold;
  font-size: 18px;
  color: #7f7f7f;
  transition: background 0.1s, color 0.1s;
}
.label:hover {
  background: #d8d8d8;
}
.label:active {
  background: #ccc;
}
.input:focus + .label {
  z-index: 1;
}
.input:checked + .label {
  background: #fff;
  color: #000;
}
@media (min-width: 600px) {
  .label {
    width: auto;
  }
}
.panel {
  display: none;
  padding: 20px 30px 30px;
  background: #fff;
}
@media (min-width: 600px) {
  .panel {
    order: 99;
  }
}
.input:checked + .label + .panel {
  display: block;
}