Simple example for text-decoration The "text-decoration"-property describes decorations that are added to the text of an element. If the property is specified for a block-level element, it should affect all inline-level descendants of the element . If it is specified for (or affects) an inline-level element, it affects all boxes generated by the element. Example: underline Block level example: underline underline]]> This is simple test of the text-decoration underline. This is simple test with a bigger font-size. This is simple test with a monospaced font. The following text decorations are defined in the CR: • none • underline • overline • line-through • blink • no-underline • no-overline • no-line-through • no-blink Combination of property values should also be possible. Combination]]> And now more than a word ... This is a whole block with the property text-decoration="underline". Some more Text to get at least two lines. This is a whole block with the property text-decoration="underline" and an inline with text-decoration="overline" bigger font-size. This is simple test with a monospaced font. What about underlining of whitespace only ?