# Using Semantic markup to mark emphasized or special text

## Using the `em` and `strong` elements to emphasize text

... What she really meant to say was, "This isn't ok, it is excellent! ...

## Using the `blockquote` element to mark up long quotations from another source

This example also demonstrates the use of the `cite` element to specify a reference.

The following is an excerpt from the The Story Of My Life by Helen Keller:

> Even in the days before my teacher came, I used to feel along the square stiff boxwood hedges, and, guided by the sense of smell, would find the first violets and lilies. There, too, after a fit of temper, I went to find comfort and to hide my hot face in the cool leaves and grass.

## Using the `q` element to mark up a shorter quotation from another source

Helen Keller said, Self-pity is our worst enemy and if we yield to it, we can never do anything good in the world.

## Using the `sup` and `sub` elements to mark up superscripts and subscripts

Beth won 1st place in the 9th grade science competition.

The chemical notation for water is H2O.