dropbutton.theme.css

/**
 * @file
 * General styles for dropbuttons.
 */

.js .dropbutton-widget {
  background-color: white;
  border: 1px solid #cccccc;
}
.js .dropbutton-widget:hover {
  border-color: #b8b8b8;
}
.dropbutton .dropbutton-action > * {
  padding: 0.1em 0.5em;
  white-space: nowrap;
}
.dropbutton .secondary-action {
  border-top: 1px solid #e8e8e8;
}
.dropbutton-multiple .dropbutton {
  border-right: 1px solid #e8e8e8; /* LTR */
}
[dir="rtl"] .dropbutton-multiple .dropbutton {
  border-left: 1px solid #e8e8e8;
  border-right: 0 none;
}

.js .dropbutton button:hover,
.js .dropbutton a:hover,
.js .dropbutton button:focus,
.js .dropbutton a:focus {
  background-color: #f7f7f7;
}