react-16-dropdown/src/main.css

A zero-dependency, lightweight and fully customizable dropdown (not select) for React.

.react-16-dropdown,
.trigger {
  display: inline-block;
}

.trigger-renderer {
  border-radius: 3px;
  line-height: 1.5;
  padding: .375rem .75rem;
  cursor: pointer;
  background: #ffffff;
  font-size: 1rem;
  border: 1px solid #dcdcdc;
}

.trigger-renderer:hover {
  background: #f0f0f0;
}

/*********************** Menu styles begin ***********************/
.menu {
  position: absolute;
  background: white;
  border: 1px solid #dcdcdc;
  border-radius: 3px;
  margin-top: 8px;
  min-width: 300px;
  max-width: 420px;
  box-shadow : 0 0 10px -5px #000000;
}

.menu-section {
  border-bottom: 1px solid #dcdcdc;
  border-top: 1px solid #dcdcdc;
}

.menu-section:first-of-type {
  border-top: 0;
}

.menu-section:last-of-type {
  border-bottom: 0;
}

.menu-section + .menu-section {
  border-top: 0;
}

.menu-section__title {
  font-size: 1rem;
  padding: .5rem;
  font-weight: bold;
}

.menu-section-title:empty {
  padding: 0;
}

.menu-section-title:empty + .menu-section {
  border-top: 0;
}

.menu:focus {
  /* outline: none */
}
/*********************** Menu styles end ***********************/

.option {
  min-height: 24px;
  padding: 8px 16px;
}

.option.focused,
.option:hover {
  background: #f0f0f0;
  cursor: pointer;
}

.option:focus {
  border: 10px solid pink;
}

.option.disabled {
  opacity: 0.5;
  background: #f0f0f0;
}

.option.disabled:hover {
  cursor: no-drop;
}