JSFiddle - React, Tailwind, and code Playground

HTML

<p class="infoBubble">aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa</p>

CSS

.infoBubble {
	font-family:arial;
	font-size:12px;
	color:#FFFFFF;
	display: inline-block;
	position: absolute;
	padding:6px;
  border: 1px solid #000;
	background-color: rgba(0, 0, 0, 0);
	-webkit-border-radius:7px;
	-moz-border-radius:7px;
	border-radius:7px;
    -moz-box-shadow: 1px 1px 3px rgba(0,0,0,0.7);
    -webkit-filter: drop-shadow(1px 1px 3px rgba(0,0,0,0.7));
    filter: drop-shadow(1px 1px 3px rgba(0,0,0,0.7));
}

.infoBubble:after {
	content:"";
	position:absolute;
	bottom:-6px;
	left:20px; 
	opacity:0.7;
	border-width:6px 6px 0; 
	border-style:solid;
	border-color:#000 transparent;
	display:block; 
	width:0;
}