Secular Web HTML Standards
1. All <IMG> tags should have the ALT and TITLE attribute.
2. Individual graphics files should be a small as possible. Pages load faster with fewer (and smaller) images.
3. Acceptable graphics file formats are PNG and JPEG/JPG. The preference is PNG format (Portable Network Graphics). Please do not use GIFs.
4. Photographic images should be saved as PNGs. You can use JPEG/JPG if necessary.
5. Always view test versions of graphics in a browser alone before using them, and make adjustments to suit your needs.