JSFiddle - React, Tailwind, and code Playground

HTML

<select class="selecttodiv" size="3">
   <option>I</option>
   <option>II</option>
   <option>III</option>
   <option>IV</option>
   <option>V</option>
   <option>VI</option>
</select>

CSS

.selecttodiv{
    display: inline-block;
    height: 3em;    
    -webkit-appearance: none;
    -moz-appearance: none;
}

.selecttodiv option{
    display: inline-block;
    width: 2.5em;
    height: 2.5em;
    float:left;
}