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What is the effective method of CSS layout debugging in web layout? I believe many inexperienced people are at a loss about it. Therefore, this paper summarizes the causes and solutions of the problem. Through this article, I hope you can solve this problem.

An effective method of debugging CSS layout in Web Page layout

CSS layout is a very important part of web page design. Here are several effective ways to check and debug CSS layout.

1. Check to see if the HTML element has spelling mistakes and forgets the closing tag

Even veterans often get the nesting relationship of div wrong. You can use dreamweaver's verification function to check for errors.

two。 Check whether the CSS is written correctly

Check to see if there are any spelling mistakes, if you forget the ending}, etc. You can use CleanCSS to check for spelling errors in CSS. CleanCSS is supposed to be a weight loss tool for CSS, but it can also check for spelling mistakes.

3. Determine the location of the error by deletion

If the error affects the overall layout, you can delete the div blocks one by one until the display returns to normal after deleting a div block to determine where the error occurred.

4. Using the border attribute to determine the layout characteristics of the error element

Accidentally laying out using the float attribute can lead to errors. At this point, add the border attribute to the element to determine the element boundary, and the cause of the error will be revealed.

The parent element of a 5.float element cannot specify the clear attribute

Under MacIE, if you use the clear attribute on the parent element of the float element, the layout of the surrounding float elements will be confused. This is MacIE's famous bug. If you don't know it, you will take a detour.

The 6.float element must specify the width attribute

Many browsers have bug when displaying float elements that do not specify a width. So be sure to specify the width attribute for the float element, regardless of its content.

In addition, try to use em instead of px as units when specifying elements.

7.float elements cannot specify attributes such as margin and padding

IE has bug when displaying float elements that specify margin and padding. So do not specify the margin and padding attributes on the float element (you can set margin and padding by nesting a div inside the float element). You can also use the hack method to specify a special value for IE.

The sum of the widths of 8.float elements is less than 100%

If the sum of the widths of the float elements is exactly 100%, some old browsers will not display properly. So make sure the sum of the widths is less than 99%.

9. Has the default style been reset?

Some properties, such as margin, padding, etc., will be interpreted differently by different browsers. Therefore, * * set all margin and padding to 0, list style to none and so on before development.

10. Did you forget to write DTD?

If the results are different no matter how you adjust the display results in different browsers, check to see if you forgot to write the following line DTD: http://www.w3.org/TR/html4/loose.dtd"> at the beginning of the page

After reading the above, have you mastered the effective method of CSS layout debugging in web layout? If you want to learn more skills or want to know more about it, you are welcome to follow the industry information channel, thank you for reading!

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