10 Mistakes div Easy to make

Div is one of the commonly used terms in Web site standards (or "web standards"), usually to illustrate the difference in how tables are positioned in the HTML web design language, because the XHTML web design standard does not use the table positioning technique, but instead uses the div+ CSS way to achieve a variety of positioning. It is easy to make mistakes when applying div coding. This article lists some common errors:

1. Check the HTML elements for spelling errors, forgetting to end tags

Even veterans often mistake div for nesting relationships. You can use the Dreamweaver verification function to check for errors.

2. Check that the CSS is correct

Check for spelling mistakes, forgetting endings, and more. You can use CLEANCSS to check your CSS for spelling errors. CLEANCSS is a tool for CSS to lose weight, but can also check out spelling mistakes.

3. Determine where the error occurred

If the error affects the overall layout, you can delete the div block individually until a div block is removed and the display returns to normal to determine where the error occurred.

4. Using the Border property to determine the layout characteristics of an error element

Using the Float property layout accidentally makes an error. Adding the border attribute to the element determines the bounds of the element, and the reason for the error is the bottom line.

5. The parent element of a FLOAT element cannot specify a clear property

Macie If the clear attribute is used for the parent element of a float element, the surrounding float element layout is confused. This is the name of Macie bug, if do not know will detours.

6. Float element must specify the Width property

Many browsers have bugs when displaying float elements that do not specify a width. So regardless of the contents of the float element, be sure to specify the width attribute. Use EM instead of PX as a unit when specifying elements.

7. Float element cannot specify properties such as margin and padding

IE has a bug when displaying float elements that specify margin and padding. Therefore, do not specify the margin and padding properties for float elements (you can set up margin and padding by nesting a div inside a float element). You can also use the Hack method to specify special values for IE.

8. The sum of the width of the float element is less than 100%

If the width of the float element is exactly 100%, some old browsers will not display properly. Make sure the sum of width is less than 99%.

9. Did you reset the default style?

Some properties such as margin, padding, and so on, different browsers will have different interpretations. Therefore, it is best to first of all margin, padding set to 0, list style set to none, etc.

10. Have you forgotten to write a DTD?

If no matter how you adjust different browser display results, you can check the beginning of the page is not forget to write the following line of DTD: