Course address: https://www.imooc.com/learn/256
First, the basic properties of Overflow
IE6: Image stretches container
poor compatibility
If one of the overflows is set to visitable and the other is set to hidden or auto, then this will be reset to auto
So there will be vertical bars in the vertical direction
100% width can be deleted
2. Oveflow and scroll bars
Left: chrom browser, right: all other browsers
IE9 and above support 2
3. Overflow and block format context
Under IE browser, DIV, P elements are suitable for bfc
4. Overflow and absolute positioning
Height 0 only works on
5. Depends on the style performance of Overflow
no line break
6. Overflow and anchor technology
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