JSFiddle - React, Tailwind, and code Playground

HTML

<form action="">
    <input id="input" type="text"/>
    <span class="placeholder">blah</span>
    <button type="submit">submit</button>
</form>

CSS

input {
    width: 100px;
}
.placeholder {
    position: relative;
    display: inline-block;
    left: -100px;
}
button {
    display: block;
}

JavaScript

$('.placeholder, #input').click(function(){
    $('.placeholder').hide();
    $('#input').focus();
});