JSFiddle - React, Tailwind, and code Playground

by basti1012

HTML

geht
 <iframe width="30%" height="30%" frameborder="0" marginheight="0" marginwidth="0" height="1700px" src="http://www.pennergame.de"></iframe> 
 
 geht nicht 
 
  <iframe width="30%" height="30%" frameborder="0" marginheight="0" marginwidth="0" height="1700px" src="http://www.googel.de"></iframe>

CSS

iframe{
 
    opacity: 0.6;
}

iframe:hover{
 
    opacity: 1;
}
 

iframe{
    transition:all 1s linear; 
 
}