CSS background:
CSS allows you to apply a solid color as a background, and also allows you to use a picture to create a fairly complex effect.
Background-attachment background Image Book no fixed or scrolling with the rest of the page
Background-color setting the background color of an element
Background-image set the picture to be banned
Background-position set the starting position of the background picture
Background-repeat Set background picture book No and How to repeat
Four states of CSS links
A:link Common, inaccessible links
a:visited user has visited the link
A:hover the mouse pointer is over the link
A:active Link Chant Click Moment
Common Link Styles
The Text-decoration attribute is mostly used to remove underscores from links
There's no underline in the air.
Background-color background color has been set
CSS list:
CSS List properties allow you to prevent, change, or label an image as a list item
List-style Abbreviated list items
List-style-image List item Image
List-style-position list Item Flag position
List Style-type Item types
A slight difference between class and ID
Class can be understood as a person's name can be repeated, but the ID is like a social security number, it is not possible to repeat.
CSS Tables
CSS Table properties can help us greatly improve the appearance of the table
Table border
Collapse border
Table Width Height
Alignment of table text
Table Inner Margin
HTML5 Promotion Road-CSS background