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Border-bottom: a box border is not text decoration

Publisher: ResumeMaker • 1 source

Published: 23 Oct 2026 08:23 · Updated: 23 Oct 2026 08:23

AI source check: 22 Oct 2026 16:54. This is not editorial approval.

In a few sentences

In brief

border-bottom draws a border beneath an element's box. On a heading, it may extend across the whole block rather than follow the letters.

Useful to know

border-bottom draws a border beneath an element's box. On a heading, it may extend across the whole block rather than follow the letters. [1]

For text underlining across wrapped lines, compare text-decoration. The two approaches have different geometry; choose according to the intended result rather than their resemblance on one short line.

Sources

For further detail and to check the information:

  1. [1] MDN — CSS border-bottom ↗