CSS Design Guide Notes

1. Inborder , solid is solid and dashed is a dashed line

2. clear for clearly floating

3. Theposition has four kinds of values:

Static Normal document Flow

Relative Position relative to the top or bottom

Absolute Absolute positioning for body or parent element positioning

FIX: Fixed positioning, not scrolling with scroll bars

4.Display: Whether it is displayed, does not occupy space when not displayed

Visibility: Whether visible, occupy space when not visible

5.background-repeat: Whether the background image is duplicated

Repeat Default

Repeat-x

Repeat-y

No repeat. Do not repeat

6.background-size: Background image size

Cover Make the picture keep the aspect ratio completely fill back scenic area

CSS Design Guide Notes