JSFiddle - React, Tailwind, and code Playground

HTML

<form action="#" id="form_field">
        <input type="text" id="textfield2" value="" placeholder="Insert image title...">
        <img src="http://dummyimage.com/300/eee/aaa">
</form>

CSS

#form_field {
    position:relative;
    width:300px;
}

#textfield2 {
    position:absolute;
    background:transparent;
    border:0;
    color:#000;
    font-size:20px;
    text-align:center;
    width:100%;
    top:20px;
    outline:none;
}