HTML attributes generally appear as name-value pairs, separated by "=", and are written within the start tag of an element, after the element's name.
<tag attribute="value">(content to be modified by the tag)</tag>
For example, to specify the size of an image or graphic on your page, you would use the image element <img /> along with the height and width attributes. "200" and "300" are the values.
<img height="200" width="300" />
