* {
  box-sizing: border-box;
}

body {
  font-family: Arial;
  padding: 10px;
  background: #f1f1f1;
}

.header {
  padding: 5px;
  text-align: center;
  background: white;
}

.header h1 {
  font-size: 30px;
  text-transform: uppercase;
}

.leftcolumn {
  float: left;
  width: 40%;
}

.rightcolumn {
  float: left;
  width: 60%;
  background-color: #f1f1f1;
  padding-left: 20px;
}

.card {
  background-color: white;
  padding: 20px;
  margin-top: 20px;
}

.row:after {
  content: "";
  display: table;
  clear: both;
}

input[type="text"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #ccc;
  border-radius: 4px;
  box-sizing: border-box;
  margin-top: 6px;
  margin-bottom: 16px;
  resize: vertical;
}

input[type="checkbox"] {
  padding: 12px;
  border: 1px solid #ccc;
  border-radius: 4px;
  box-sizing: border-box;
  margin-bottom: 16px;
  resize: vertical;
}

.submit {
  width: 100%;
  background-color: #04aa6d;
  color: white;
  padding: 12px 20px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

.submit:hover {
  background-color: #45a049;
}

.container {
  border-radius: 5px;
  background-color: #f2f2f2;
  padding: 20px;
}

.collapsible {
  background-color: #eee;
  color: #444;
  cursor: pointer;
  padding: 18px;
  width: 100%;
  border: none;
  text-align: left;
  outline: none;
  font-size: 15px;
  text-transform: uppercase;
}

.active,
.collapsible:hover {
  background-color: #ccc;
}

.contentcollapsible {
  padding: 0 18px;
  background-color: white;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.2s ease-out;
  height: 270px;
  overflow: scroll;
}

.collapsible:after {
  content: "\02795";
  font-size: 13px;
  color: white;
  float: right;
  margin-left: 5px;
}

.active:after {
  content: "\2796";
}

.contentcollapsible > .book_list > .book_item > .sideleft {
  float: left;
  width: 70%;
}

.contentcollapsible > .book_list > .book_item > .sideright {
  float: left;
  width: 30%;
}

.contentcollapsible > .book_list > .book_item > .sideright > .action > button {
  border: none;
  padding: 5px 10px;
  width: 130px;
  margin: 0 5px 0 0;
  border-radius: 2px;
  cursor: pointer;
  color: white;
  text-align: center;
  text-decoration: none;
  margin-top: 10px;
}

.contentcollapsible > .book_list > .book_item > .sideright > .action > .primary {
  background-color: #4caf50;
}

.contentcollapsible > .book_list > .book_item > .sideright > .action > .danger {
  background-color: #f44336;
}

@media screen and (max-width: 800px) {
  .leftcolumn,
  .rightcolumn {
    width: 100%;
    padding: 0;
  }

  .contentcollapsible > .book_list > .book_item > .sideright > .action > button {
    padding: 5px 5px;
    width: 120px;
  }
}

@media screen and (max-width: 400px) {
  .card a {
    float: none;
    width: 100%;
  }

  .contentcollapsible > .book_list > .book_item > .sideright,
  .contentcollapsible > .book_list > .book_item > .sideleft {
    width: 100%;
    padding: 0;
    display: block;
    font-size: 10pt;
  }

  .contentcollapsible > .book_list > .book_item > .sideright .action > button {
    width: 85px;
    font-size: 8pt;
  }

  .card .inputSrc {
    width: 80%;
  }

  .card .btnSrc {
    width: 20%;
  }
}