/*.tab_structure {
  box-sizing: border-box;
}*/
.tabs {
  display: flex;
  flex-wrap: wrap;
  max-width: 700px;
  #background: #efefef;
  /*box-shadow: 0 48px 80px -32px rgba(0,0,0,0.3);*/
}
.tabs .input {
  position: absolute;
  opacity: 0;
}
.tabs .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;
}

.tabs .label:hover {
  background: #d8d8d8;
}

.tabs .label:active {
  background: #ccc;
}

.tabs .input:focus + .label {
  box-shadow: inset 0px 0px 0px 3px #2aa1c0;
  z-index: 1;
}

.tabs .input:checked + .label {
  background: #fff;
  color: #000;
}

.book_container{
  display: table;
}

@media (min-width: 600px) {
  .tabs .label {
    width: auto;
  }
}
.tabs .panel {
  display: none;
  padding: 20px 30px 30px;
  background: #fff;
}

@media (min-width: 600px) {
  .tabs .panel {
    order: 99;
  }
}

.tabs .input:checked + .label + .panel {
  display: block;
}