modal.css

#modal {
  display: none;
  position: relative;
  width: 100%;
  top: -700px;
  z-index: 1;
}
#modal h3{
  margin: 0;
}
#modal button, #modal input[type=submit], #modal input[type=reset], #modal input[type=button] {
  background-color: #008CBA;
  color: white;
  border: none;
  padding: 10px 17px;
  text-align: center;
  font-size: 14px;
  font-weight: bold;
  cursor: pointer;
  border-radius: 6px;
}
#modal button:hover, #modal input[type=submit]:hover, #modal input[type=reset]:hover, #modal input[type=button]:hover {
  background-color: #006C9A;
}
#modal input[type=text], #modal input[type=time], #modal select{
  border: 0.5px solid gray;
  font-size: 12px;
  margin-left: 5px;
  padding: 5px;
}
#modal input[type=time] {
  width: 95px;
  margin-right: 5px;
}

#modal .modal_content {
  width: 300px;
  margin: 100px auto;
  padding: 20px 10px;
  background: #fff;
  border: 2px solid #666;
}
#modal .modal_layer {
  position: fixed;
  top: 0px;
  left: 0px;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: -1;
}