JSFiddle - React, Tailwind, and code Playground

HTML

<div class="logo">
         <!--<div class="down"></div>-->
    </div>

CSS

.logo {
background-image: url("https://cdn0.iconfinder.com/data/icons/small-n-flat/24/678110-sign-info-128.png");
width:124px;
height: 131px;
float: left;
margin-left: 290px;
margin-top: 30px;
margin-bottom: 93px;
position: relative;
/*margin-right: 160px;*/
 }
 .logo::after {
content: '';
 border-left: 80px solid transparent;
border-right: 80px solid transparent;
border-top: 80px solid white;
position: absolute;
width: 0;
height: 0;
top: 90px;
left: -15px;
/*top: 120px;
left: 275px;*/
clear: both;
 /*transform-origin: 0 100%;        
transform: rotate(45deg);*/
/*margin-top: 90px;
margin-left: 0px;*/
z-index: -1;
 }