Typically one would use one (or more) image tags, maybe in combination with setting div background images in css to act as the submit button ... ... <看更多>

You could create new CSS-classes dynamically via Javascript and then use them in your button definition. Here are two links which should help you out:. ... <看更多>

A nice CSS button style for elements. Tested in IE6-9, Firefox 3.6-4, ... buttons.html. ... Use a background-image, then overlay a gradient if available. ... <看更多>

Just getting started with Squarespace CSS? ... How use a image for a button background in Squarespace - 7 ... ... <看更多>