| Subject | English | Welsh |
| comp., MS | Exit HTML Source | Gadael Ffynhonnell HTML (An option that switches the view from the display of HTML source code to the display of Web page content) |
| comp., MS | filtered HTML | HTML wedi'i hidlo (An HTML format with Microsoft Office-specific tags removed) |
| comp., MS | HTML source | ffynhonnell HTML (The unrendered HTML code including tags and syntax) |
| comp., MS | rich HTML | HTML cyfoethog (HTML that includes markup for formatting such as backgrounds, borders, text fonts, styles and colors) |