JSFiddle - React, Tailwind, and code Playground

by Dörnesz Tamás

HTML

<div class="styled-select">
<select>
<option>kg</option>
<option>lb</option>
</select>
</div>

CSS

.styled-select select {
    background: transparent;
    font-size: 16px;
    width: 70px;
    height: 25px;
    border: 0px;
}

.styled-select {
    border:1px solid #aaa;
    position: relative;
    top: 10px;
    display: inline-block;
    height:25px;
    width:50px;
    box-shadow: 0px 0px 3px #ccc, 0 10px 15px #eee;
    border-radius:2px;
    overflow: hidden;
    background: url(image.jpeg) no-repeat right #eee;
}
.styled-select select:hover {
background-colour : #000000;
color : #ffffff;
}

.styled-select select:focus {
    background: url(image.jpeg) no-repeat right #AA0000;
}