.buttonclass{ 
  border: 12;
 }

.modal{ 
  display: none;
  position: fixed;
  z-index: 9;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  overflow: auto;
  background-color: rgb(0,0,0);
  background-color: rgba(0,0,0,0.4);
  padding-top: 13px;
 }

.modal-content{ 
  background-color: #fefefe;
  margin: 5px auto;
  border: 1px solid #888;
  width: 80%;
 }

.modal-close{ 
  position: absolute;
  right: 13px;
  top: 3px;
  color: #fed;
  font-size: 55px;
  font-weight: bold;
 }

.modal-close:hover{ 
  color: red;
  cursor: pointer;
 }

.modal-close:focus{ 
  color: red;
  cursor: pointer;
 }