JSFiddle - React, Tailwind, and code Playground

by Dmitry Nazarov

HTML

<div class="line"></div>

CSS

.line {
  position: absolute;
  top: 0;
  width: 100%;
}
.line:hover:after {
  content: '';
  width: 15px;
  height: 10vh;
  position: absolute;
  z-index: 1;
  top: 40px;
  -moz-transform: rotate(45deg) translate(-25%, -10%);
  -webkit-transform: rotate(45deg) translate(-25%, -10%);
  -o-transform: rotate(45deg) translate(-25%, -10%);
  -ms-transform: rotate(45deg) translate(-25%, -10%);
  transform: rotate(45deg) translate(-100%, -5%);
  left: 21%;
  margin-left: 0;
  -webkit-transform-origin: 0% 0%;
  transform-origin: 0% 0%;
  border-right: 1px solid #3296dc;
}
.line:hover:before {
  content: '';
  width: 15px;
  height: 10vh;
  position: absolute;
  z-index: 1;
  top: 0;
  -moz-transform: rotate(45deg) translate(-25%, -10%);
  -webkit-transform: rotate(45deg) translate(-25%, -10%);
  -o-transform: rotate(45deg) translate(-25%, -10%);
  -ms-transform: rotate(45deg) translate(-25%, -10%);
  transform: rotate(45deg) translate(100%, -25%);
  left: 21%;
  border-right: 1px solid #3296dc;
}