02.14 Summary

How 1CSS Works

2 Normal flow vertical margin merge problem (take large margin)

3 Rows high problem normal and number, will make the font size following changes

4BFC trigger condition: float except for none, overflow except visible, display contains table-cell,table-caption,inline-block; Position to Absolute

5BFC function: 1 does not overlap with floating elements 2 clear element inner Floating 3 resolve overlap of two adjacent elements

6 compatibility problem zoom:1;

The Haslayout property value of 7IE may be true and false can be used object.currentStyle.hasLayout to determine whether to have the layout; IE8 The following applies

8 Recommended download needs use IMG tag, such as logo, Avatar, banner picture; no download required use background image, such as icon, background, code use picture

9 Audio format recommended compatible with MP3 (MPEG) WAV ogg, video format recommended compatible mp4,webm,ogg; Flash format with SWF

10 font and line height can be ligatures font-size/line-height

02.14 Summary