.multi-select-container {
  position: relative;
}

.multi-select-menu {
  left: 0;
  top: 0.8em;
  min-width: 100%;
  background: #fff;
  padding: 0.4em 0;
  border: 1px solid #aaa;
  display: none;
}

.multi-select-menu input {
  margin-right: 0.3em;
}

.multi-select-button {
  display: inline-block;
  padding: 0.2em 0.6em;
  width: 98%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  background-color: #fff;
  border: 1px solid #aaa;
  border-radius: 4px;
  cursor: default;
}

.multi-select-button:after {
  content: "";
  display: inline-block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0.4em 0.4em 0 0.4em;
  border-color: #999 transparent transparent transparent;
  margin-left: 0.4em;
  vertical-align: 0.1em;
}

.multi-select-container--open .multi-select-menu { 
    display: block;
}

.multi-select-container--open .multi-select-button:after {
  border-width: 0 0.4em 0.4em 0.4em;
  border-color: transparent transparent #999 transparent;
}