JSFiddle - React, Tailwind, and code Playground

HTML

<div style="width:100%;padding:20px;background-color:red;">in android this div is 100% + padding </div>

<div style="width:100%;background-color:orange;">and thus this div is shortened by android browser</div>

CSS

div {
    box-sizing: border-box;
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box;
}