Summary of Multi-browser CSS Compatibility Analysis

Key Points of CSS compatibility:
1. doctype affects CSS processing.
2. FF: When Div sets margin-left and margin-Right to auto, it is already centered. IE is not working.
3. When setting text-align for FF: body, you must set margin: auto (mainly margin-left and margin-Right) for the DIV to be centered.
4. FF: After padding is set, the DIV will increase the height and width, but IE will not, so we need to use it! Important has one more height and width.
5. FF: supported! Important, ie is ignored, available! Important sets a special style for ff.
6. Vertical center of the DIV: vertical-align: middle; Increase the line spacing to the same height as the entire Div line-Height: 200px; then insert the text to the vertical center. The disadvantage is that you need to control the content rather than line feed.
7. cursor: pointer can display the cursor finger in IE ff at the same time, and hand can only be Ie.
8. FF: adds a border and a background color to the link. You must set display: block and float: left to avoid line breaks. Refer to menubar to set the height of a and menubar to avoid misplacement of the bottom side. If no height is set, you can insert a space in menubar.

Small set of XHTML + CSS compatibility Solutions
There are many advantages to using the XHTML + CSS architecture, but there are also some problems. Whether it is because I am not skilled or have unclear ideas, I will first write down some of my problems below, search for the province ^

1. The box model interpretation in Mozilla Firefox and IE is inconsistent, resulting in a 2px difference. solution:CopyCodeThe Code is as follows: div {margin: 30px! Important; margin: 28px ;}

Note that the order of the two margin entries must not be reversed. According to Alibaba Cloud! The important attribute ie cannot be identified, but other browsers can. So in IE, it is actually explained as follows:Copy codeCode: div {maring: 30px; margin: 28px}

If the definition is repeated, execute the last statement. Therefore, you cannot write only margin: xxpx! Important;

2. the box interpretations of ie5 and IE6 are inconsistent. Div {width: 300px; margin: 0 10px 0 10px;} Div width is interpreted as 300px-10px (right filling) -10px (left filled) the final Div width is 280px, while the width on IE6 and other browsers is 300px + 10px (right filled) + 10px (left filled) = 320px. In this case, we can make the following changes:
Div {width: 300px! Important; width/**/: 340px; margin: 0 10px 0 10px}
I don't quite understand what/**/is. I only know that both ie5 and Firefox support it, but IE6 does not. If anyone understands it, please let me know. Thank you! :)

3. UL labels have padding values by default in Mozilla, while in IE, only margin has values. Therefore, we should first define:Copy codeThe Code is as follows: ul {margin: 0; padding: 0 ;}

Most problems can be solved.

4. For the script, the language attribute is not supported in xhtml1.1. You only need to change the code
<SCRIPT type = "text/JavaScript"/>
You can.