Understanding the ::marker Pseudo-Element in CSS
The ::marker pseudo-element is used to style the marker box of list items, such as bullets in unordered lists or numbers in ordered lists. It allows you to customize the appearance of list markers without altering the HTML content.
::markertargets only the marker portion of<li>elements, not the content text.You can style properties like
color,font-size,font-weight, andcontentfor the marker.Other CSS properties, like
marginorpadding, generally do not apply to::marker.Useful for customizing bullets, numbers, or symbols in lists to match design aesthetics.
In this example, the ::marker pseudo-element changes the bullet color to red, increases its size, and replaces the default bullet with a star symbol. This is all achieved without modifying the HTML structure of the list.
Use
::markerfor purely visual customization of list markers.Avoid adding essential content in markers that users need to read, as screen readers may treat them differently.
Combine with relative units or
emfor scalable and responsive marker styling.Test across browsers, as some older browsers may have limited support for
::markerstyling.