nespaint/sass/modal.scss

/* NOTE: Modal styles were borrowed from
 * https://www.w3schools.com/howto/howto_css_modals.asp
 * and modified.
 */
/* The Modal (background) */
.modal {
  display: none; /* Hidden by default */
  @include cover();
  background-color: rgba(0,0,0,0.4); /* Black w/ opacity */
}

.modal-visible {
  display: block;
}

/* Modal Content/Box */
.modal-content {
  background-color: #fefefe;
  margin: 15% auto; /* 15% from the top and centered */
  padding: 20px;
  border: 1px solid #888;
  width: 80%; /* Could be more or less, depending on screen size */
}