JSFiddle - React, Tailwind, and code Playground

by Brenton Strine

HTML

<div class="rgba">rgba</div>

<div class="alphaFilter">alpha filter</div>
<div class="gradientFilter">gradient filter</div>

CSS

div {   
    color: orange;
    background: #000; 
    background: rgba(0,0,0,.5); 
}
.alphaFilter{
    filter: alpha(opacity='50');
}

.gradientFilter{
    
    filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#33FFFFFF,endColorstr=#33FFFFFF);
}