JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://twitter.github.com/bootstrap/1.4.0/bootstrap.min.css">
<input class="myClass" type="text" value="Abcdefghijklmnop" />

<br />
<br />

<select class="myClass">
    <option> ABC </option>
    <option> XYZ </option>
</select>

CSS

.myClass
{
    width: 300px;
}