.tabs {
  margin: 0 auto; 
}
section {
  display: none;
}
.tabs input {
  display: none;
}
.tabs label {
  display: inline-block;
  margin: 0 0 -1px;
  padding: 15px 25px;
  font-weight: 600;
  text-align: center;
  font-size: 11pt;
  font-family: Tahoma, "Geneva CY", sans-serif;
  font-weight: bold;
  color: #aaa;
  border: 1px solid #ddd;
  background: #f1f1f1;
  border-radius: 10px 10px 0 0;
}

.tabs label:hover {
  color: #888;
  cursor: pointer;
}
.tabs input:checked + label {
  color: #FFF;
  border: 1px solid #ddd;
  background: #57980F;
  background: linear-gradient(to top, #8BC11A, #57980F);
  font-size: 11pt;
  font-family: Tahoma, "Geneva CY", sans-serif;
  text-shadow: 1px 1px 2px #497505;
  font-weight: bold;
}
#tab1:checked ~ #content1,
#tab2:checked ~ #content2 {
  display: block;
} 
#content1 {height:362px;}
#content2 {height:400px;}