You should tell your browser the size of the image, otherwise the image
might cover up something in your document.
The can be set to the same height and width as the image, in which case they are called hints.
Gimp shows you what the image looks like and gives you the approximate size (in pixels) of an image. See the rulers.
alt="A winning hand at blackjack (21)">
alt="Wider and shorter">
If you want to learn how to search effectively using Google, visit Google Guide, which you can find at www.googleguide.com.