.tabs {
  position: relative;   
  width: 100%;
  min-height: 800px; /* This part sucks */
  clear: both;
}
.tab {
  float: left;
}
.tab label {
  background: #eee; 
  padding: 10px; 
  border: 2px solid #ccc; 
  margin-left: -1px; 
  font-size: 100%;
  position: relative;
  left: 1px; 
}
.tab [type=radio] {
  display: none;   
}
.content {
  position: absolute;
  background: #fff;
  top: 28px;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 20px;
  border: 0px;
  margin-top:30px;  
  margin-left :-15px;
}
[type=radio]:checked ~ label {
  background: white;
  border-bottom: 1px solid white;
  z-index: 2;
}
[type=radio]:checked ~ label ~ .content {
  z-index: 1;
}

@media (max-width: 500px) {
.tabs {
  position: relative;   
  width: 100%;
  min-height: 1800px; /* This part sucks */
  clear: both;
}
}