JSFiddle - React, Tailwind, and code Playground

HTML

<form id="container">
    <input type="text" /><br/>
    <select>
        <option>Foo</option>
        <option>Bar</option>
    </select><br/>
    <textarea></textarea><br/>
    <button type="button">Button</button><br/>
</form>

CSS

#container {
 padding: 5px 0;   
}
#container * {
 margin: 5px 10px;   
}

JavaScript

function isNotSELECT () {
  return !$(this).is("select");
}

$( "#container" ).children().filter( isNotSELECT ).fadeTo( "slow", .5 );