How Can I Style a `` Element\'s Appearance Using Only CSS?

Selecting Styled Selections with CSS

While attempting to enhance a element with styling using the ::after pseudo-element, a user encountered an unexpected issue. The desired outcome was to divide the selection box into two sections without incorporating images. Despite defining the following HTML and CSS:

<select name="">
  <option value="">Test</option>
</select>

select {
  -webkit-appearance: none;
  background: black;
  border: none;
  border-radius: 0;
  color: white;
}

select::after {
  content: " ";
  display: inline-block;
  width: 24px;
  height: 24px;
  background: blue;
}

the styling failed to materialize. Investigation into the W3C specifications yielded no clarity.

The Limitations of the Approach

After careful analysis, it was determined that the desired effect is currently not achievable using the specified method due to intrinsic limitations. The way select elements are rendered on specific operating systems, rather than the browser's internal rendering engine, prevents the modification of their appearance or behavior through CSS.

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