JSFiddle - React, Tailwind, and code Playground

HTML

<body id='body'>
    <div id='container'>
        <div class='innerContainer'>
            <div class = 'text' id='field'></div>
        </div>
        <div class='innerContainer'></div>
    </div>
    <input type='button' id='button'></input>
</body>

CSS

#body {
    height: 300px;
    width: 100%;
    margin: 0;
    padding: 0;
    background-color: #333;
}
#container {
    height: 10%;
    background-color: #000;
}
.innerContainer {
    width: 30%;
    height: 100%;
    margin: 0 9.5%;
    background-color: #F00;
    display: inline-block;
}

.text {
    height : 100%;
    line-height: 100%;
}
#button {
    margin-top: 20%;
    margin-left: 20%;    
}

JavaScript

var button = $('button');
$(button).set('value', 'Insert Text');

var field = $('field');

$(button).addEvent('click', function() {
    if ($(button).get('value') == 'Insert Text') {
        $(button).set('value', 'Remove Text');
        $(field).set('text', 'Hello');
    } else {
        $(button).set('value', 'Insert Text');
        $(field).set('text', null);
    }
});