* {
  box-sizing: border-box;
}
.opac {
background-color: rgba(0, 0, 0, 0.6);
position:fixed;
top:0;
right:0;
bottom:0;
left:0;
z-index:20;
overflow: auto;
display: flex;
justify-content: center;
align-items: center;
}
.html-content{
  margin-top:25px;
  max-width: 70vw;
}
/* The Modal (background) */
.modal-custom {
  display: none;
  position: absolute;
  z-index: 20;
  margin: 0 auto;
  top: 20%;
  max-width: 70vw;
  background-color: white;

}
/* Modal Content */
.modal-content {
  position: relative;
  margin: auto;
  padding: 5px;
  background-color: white;
}

/* The Close Button */
.close {
  font-size: 35px;
  opacity: 1;
  font-weight: bold;
}


.close:hover,
.close:focus {
  color: #999;
  text-decoration: none;
  cursor: pointer;
}


.cursor {
  cursor: pointer;
}

/* Position the "next button" to the right */
.next {
  right: 0;
  border-radius: 3px 0 0 3px;
}



.caption-container {
  text-align: center;
  background-color: transparent;
  padding: 2px 16px;
  color: white;
}

.demo {
  opacity: 0.6;
}