JSFiddle - React, Tailwind, and code Playground

by htmlzengarden

HTML

<span class="pied"></span>

CSS

body
{
  padding: 100px;
}

@-webkit-keyframes pulser{to{opacity: 0.5}}
   @-moz-keyframes pulser{to{opacity: 0.5}}
    @-ms-keyframes pulser{to{opacity: 0.5}}
     @-o-keyframes pulser{to{opacity: 0.5}}
        @keyframes pulser{to{opacity: 0.5}}

.pied
{
  display: block;
  width: 100px;
  height: 30px;
  background-color: black;
  		
		-webkit-animation: pulser .5s infinite alternate;
		   -moz-animation: pulser .5s infinite alternate;
		    -ms-animation: pulser .5s infinite alternate;
		     -o-animation: pulser .5s infinite alternate;
		        animation: pulser .5s infinite alternate;
}