HTML Tutorial
Clean Code, Escape Codes and Comments
| Clean Code… |
Clean code means that your HTML coding follows all specifications. Here are a few ways to keep your code clean:
- Don’t type special characters into your code, instead type their escape code… many characters should NEVER be typed directly into HTML code… for example the "<", ">", the "?", "&", and the " itself. Instead, type &escape_code; (Ampersand, Escape Code for Character, then a semicolon). For these 5 characters, here are the escape codes…
- For the < type <
- For the > type >
- For the ? type ©
- For the & type &
- For the " type "
- Use quotes around values in attributes… For example, if you want a horizontal rule that is half of the screen width, type <hr width="50%"> rather than <hr width=50%>, or if you want one that is size 5 type <hr size="5"> rather than <hr size=5>. Isn’t it ironic that I don’t? <g>
- Don’t overlap tags… Overlapping occurs when Tag A starts, Tag B starts, Tag A closes, then Tag B closes. This will cause errors in sensitive browsers. For Example, it will not render correctly in Navigator 4.0 Beta1, Netscape purposefully built into the browser so developers could catch errors. Examples:
- Wrong Way (Overlaps):
<font size=+1><b>This is Bold and One Font Size Bigger</font></b>
Right Way (Doesn’t Overlap):
<font size=+1><b>This is Bold and One Font Size Bigger</b></font>
- Wrong Way (Overlaps):
<a href="here.html"><i>This link is italicized</a></i>
Right Way (Doesn’t Overlap):
<a href="here.html"><i>This link is italicized</i></a>
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| The Comment Tag… |
| If you are writing an HTML document, sometimes you may want to put little reminders to yourself with your code so that you will be able to interpret your coding better. A comment will not appear in a web browser when the page is displayed… it is only visible when the source code is viewed. You start commented text with <!-- and end it with -->. |
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