Highlighting Selected Text with CSS
CSS provides a pseudo-element ::selection that allows you to style the portion of text a user selects dynamically. This is useful for improving user experience, accessibility, or matching selection styles with your website's theme.
::selectiontargets text that the user highlights using mouse or keyboard.Common properties you can style include
background-color,color,text-shadow, andcursor.Not all CSS properties are supported; for example,
borderormarginwill not apply.You can use vendor prefixes (
::-moz-selection) for older browser support.
In this example, when a user selects text inside a paragraph, the background turns yellow, the text becomes black, and a subtle white text shadow adds depth. This enhances visibility and provides a customized selection effect.
Ensure sufficient contrast between selected text and background for readability.
Keep selection styles consistent with your site's color scheme and accessibility guidelines.
Avoid using overly complex styles that may distract or reduce readability.
Test selection styling across different browsers to ensure consistent behavior.
Combine
::selectionwith other text formatting techniques for enhanced UX.