.vui-mention {
  position: relative;
  display: inline-block;
  box-sizing: border-box;
  width: 100%;
}
.vui-mention-measure {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  overflow: auto;
  visibility: hidden;
  pointer-events: none;
}