JSFiddle - React, Tailwind, and code Playground

by Thiago Diniz

HTML

<div class="sua-classe">
  
</div>

CSS

.sua-classe{
   height:400px;
   width:400px;
   font-family:sans-serif
 }
 
 .sua-classe:after{
     color:#fff;
     font-size:50px;
     text-align:center;
     line-height:400px;
     display:block
   }
 
 /*FIREFOX*/
  @-moz-document url-prefix() {
   .sua-classe {
     top:0;
     right:0;
     position: fixed;
     background-color:red
   }
   
   .sua-classe:after{
     content:"Firefox"
   }
 }
 /*CHROME & SAFARI*/
 
 @media screen and (-webkit-min-device-pixel-ratio:0) {
   .sua-classe {
     position: relative;
     background-color:blue
   }
   
   .sua-classe:after{
     content:"Chrome/Safari"
   }
 }