if the label wraps the form field it's associated with, you should be ok. However, the "alt" attribute is completely inappropriate for tooltips. If you're looki

if the label wraps the form field it's associated with, you should be ok. However, the "alt" attribute is completely inappropriate for tooltips. If you're looking to do something like that you should provide real tooltip functionality either using the title attribute, or better, display text right next to the field that's visible, which you turn into tooltips when JS is enabled. Then everyone wins. From HTML4's spec: "The alt attribute specifies alternate text that is rendered when the image cannot be displayed (see below for information on how to specify alternate text ). User agents must render alternate text when they cannot support images, they cannot support a certain image type or when they are configured not to display images."