| A | B |
| target attribute | specifies where to open the linked document |
| _blank | opens the linked document in a new window or tab |
| _self | opens the linked document in the same window/tab as it was clicked |
| _parent | opens the linked document in the parent frame |
| _top | opens the linked document in the full body of the window |
| hex #000000 | RGB color black |
| hex #FFFFFF | RGB color white |
| hex #FF0000 | RGB color red |
| hex #00FF00 | RGB color green |
| hex #0000FF | RGB color blue |
| <!-- This is a comment --> | HTML5 comment |
| /* This is a comment */ | CSS comment |
| <link rel="stylesheet" type="text/css" href="mystyle.css"> | External CSS |
| <style>h1 {color: maroon;}</style> | Internal CSS |
| <p style="color:red;">This is a paragraph.</p> | Inline CSS |
| repeat | The background image is repeated both vertically and horizontally. Default |
| repeat-x | The background image is repeated only horizontally |
| repeat-y | The background image is repeated only vertically |
| no-repeat | The background-image is not repeated. The image will only be shown once |
| By default, unvisited link | underlined and blue |
| By default, visited link | underline and purple |
| By default, active link | underline and red |
| <svg> element | allows vector based graphics |
| <canvas> | used to draw graphics on a web page |
| Start tag for HTML5 | <!DOCTYPE html> |