JSFiddle - React, Tailwind, and code Playground

by Vitorino fernandes

HTML

<div class="image">
   <img src="http://placeimg.com/400/100/any">
</div>

CSS

.image{
    position:relative;
}
.image:after {
    content:'';
    width: 0; 
    height: 0; 
    border-left: 20px solid transparent;
    border-right: 20px solid transparent;   
    border-top: 20px solid #f00;
    position:absolute;
    left:50%;
    top:0;
    transform:translatex(-50%);
}
img{
    width:100%;
}