One: selector
For example: h2+h1 Explanation: Set styles for tags that are adjacent to h2
Effect:
, for example, h1In one area (box), style the p tags after h1
Effect:
The.class selector explains: The tag has a class name for styling
A:
Styling the class name directly within the tag will set all the tags with the class name
Tag and then set will have the class name and tag consistent style set
Otherwise it is invalid
Effect:
.border. OneBor styles labels with these two class names
Effect:
Set the style of the span tag class named alert under p
Effect:
【】
< span class=”alert” style =” span “style =”alert
Effect:
< span class=”alert stop” > < span class=”alert stop” > < span class=”alert stop”
Effect:
原 文 : The label in accordance with the title of the style set class and other can be
Effect:
A [href*=”contact”]
Effect:
[href^=” HTTPS “] [href^=” HTTPS “] [href^=” HTTPS”
Effect:
6:For example, ul > li[class]=”one”] < ul parent li class name =”one” > < ul parent li class name =”one” > < ul parent li class name =”one” >
Effect:
Case sensitive
Explanation: I is case insensitive
Effect:
MDN:developer.mozilla.org/en-US/docs/…