JSFiddle - React, Tailwind, and code Playground

HTML

<div id="selectbox"><select name="select">
      <option value="value1">Value 1</option> 
      <option value="value2" selected>Very long string to show by default. Very long string to show by default. Very long string to show by default. Very long string to show by default. Very long string to show by default. </option>
      <option value="value3">Value 3</option>
    </select>
</div>

CSS

#selectbox {
    width: 300px;
    overflow-x: scroll;
}