.tab {
  overflow: hidden;
  border: 0px solid #ccc;
  background-color: #f1f1f1;
}
.tab button {
  background-color: inherit;
  float: left;
  border: none;
  outline: none;
  cursor: pointer;
  padding: 14px 16px;
  transition: 0.3s;
  font-size: 17px;
  color: black;
}

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

.tab button.active {
  background-color: #ccc;
}

.tabcontent {
  display: none;
  padding: 6px 12px;
  border: 1px solid #ccc;
  border-top: none;
}


.bicycle_tab {
  overflow: hidden;
  border: 1px solid #ccc;
  background-color: #f1f1f1;
}

.bicycle_tab button {
  background-color: inherit;
  float: left;
  border: none;
  outline: none;
  cursor: pointer;
  padding: 14px 16px;
  transition: 0.3s;
  font-size: 14px;
  color: black;
}

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

.bicycle_tab button.active {
  background-color: #ccc;
}


.bicycle_tabcontent {
  display: none;
  padding: 6px 12px;
  border: 1px solid #ccc;
  border-top: none;
}

td.details-control {
    background: url('/wp-content/plugins/book-mec-test-bicycle/Images/details_open.png') no-repeat center center;
    cursor: pointer;
}
tr.shown td.details-control {
    background: url('/wp-content/plugins/book-mec-test-bicycle/Images/details_close.png') no-repeat center center;
}