Here are the pseudo classes (before and after) and beforeafter

Here are the pseudo classes (before and after) and beforeafter
1. before and after pseudo classes

• Before insert a style before

Result demo

• Insert style after

The result is Ii. root pseudo classSets the underlying style, which can be used to insert a background image. III,

• Input: enabled {...} sets all enabled input Elements
• Input: disabled {...} sets and disables the corresponding input element.

Iv. css: selection such as: p: selection {.......}The pseudo-class selector is used to highlight any part of the page selected by the user, including the text in the editable text field V. Anti-pseudo Selector

• E: not (s) matches any element that does not match the current selector.

6. target pseudo-classUsed to match the connection corresponding to the above result in a location connected to the same page. Then, the corresponding div is automatically redirected and its style is changed.