JSFiddle - React, Tailwind, and code Playground

by maximiloi

HTML

<div>
  <iframe src="https://yandex.ru/map-widget/v1/?um=constructor%3A4b1c2b51fbd3984bb2f7b9be477250e9821572ab10802a6f97bc3c449d9ff9d3&amp;source=constructor"
    width="100%" height="535" frameborder="0"></iframe>
</div>

CSS

body {
  margin: 0;
}

div {
  display: inline-flex;
  position: relative;
}

div:before {
  content: '';
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  margin: auto;
  background: rgba(0,55,255,0.3);
}

div:hover:before {
  background: rgba(0,55,255,0.0);
}