And if everything else fails, you can even directly insert content from CSS by using base64-encoded data strings, although smuggling in encoded data would hardly count as “generating HTML ...

HTML and CSS form the basic coding languages for web design and development. ... Best portfolio website builder of 2025. Coding for kids: the best free and paid programs in 2025.

Output: The results of executing the CSS, HTML, and JavaScript entered into the sections of the page. Figure A shows jsFiddle loaded in Internet Explorer 9 with empty code panes.