JSFiddle - React, Tailwind, and code Playground

HTML

<div id="wrapper">
    <div id="contents">
        some text
    </div>
</div>

CSS

#wrapper {
    float: left;
    width: 99%;
    border-radius: 1em;
    margin: .5% .5% .25% .5%;
    background-color: #B7ECFF;
}
#contents { padding-left: 1em; }