JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" value="Sample textbox" />
<select>
    <option>Value 1</option>
    <option>Value 2</option>
</select>

CSS

select, input {
    margin: 0;
    display: block;
    padding: 6px 4px;
    border: 1px solid #ccc;
    -moz-box-sizing: content-box;
    -webkit-box-sizing:content-box;
    box-sizing:content-box;
    height: 15px;
    line-height: 15px;
    font-size: 12px;
    float: left;
}