.tab {
  float: left;
  /* border: 1px solid #ccc; */
  /* background-color: #f1f1f1; */
  width: 30%;
  height: 300px;
}

.tab button {
  /* display: block;
  background-color: inherit;
  color: black;
  padding: 22px 16px;
  width: 100%;
  border: none;
  outline: none;
  text-align: left;
  cursor: pointer;
  transition: 0.3s;
  font-size: 17px; */
  display: block;
  background-color: inherit;
  color: black;
  width: 100%;
  padding: 0;
  height: 100px;
  border: none;
  outline: none;
  text-align: center;
  cursor: pointer;
  transition: 0.3s;
  font-size: 17px;
  line-height: 100px;
  border-radius: 0;
}

.tab button:hover {
  background-color: #ddd;
}

.tab button.active {
  /* background-color: #ccc; */
  background-color: rgba(204, 204, 204, 0.5); 
}

.tabcontent {
  float: left;
  padding: 0px 12px;
  border: 1px solid #ccc;
  width: 70%;
  border-left: none;
  height: 350px;
}