JSFiddle - React, Tailwind, and code Playground

HTML

<div id="div_0"></div>
        <div id="div_1"></div>

CSS

body { line-height: 0; font-size: 0; }
#div_0, #div_1 {
                width: 100px;
                height: 100px;
                display: inline-block;
                margin: 0;
                padding: 0;
            }
            
            #div_0 {
                background-color: #090;
            }
            
            #div_1 {
                background-color: #900;
            }