vanquish
发表于 2025-3-25 06:16:54
http://reply.papertrans.cn/23/2207/220672/220672_21.png
labyrinth
发表于 2025-3-25 09:33:29
http://reply.papertrans.cn/23/2207/220672/220672_22.png
Monotonous
发表于 2025-3-25 14:36:45
http://reply.papertrans.cn/23/2207/220672/220672_23.png
内向者
发表于 2025-3-25 19:47:50
Using CSS,There are three ways to insert CSS into an HTML document: by using an internal style sheet, inline styles, or an external style sheet. An internal style sheet applies to a single page, an inline style to a single element, and an external style sheet to potentially an entire web site.
Offstage
发表于 2025-3-25 20:00:07
Grouping,To keep style sheets short and easy to edit, similar rules can be grouped together. This grouping provides several ways to specify a set of related rules. For example, you can color the text red and the background black for two header elements in four different ways, as described in the following sections.
violate
发表于 2025-3-26 03:30:33
http://reply.papertrans.cn/23/2207/220672/220672_26.png
虚假
发表于 2025-3-26 05:43:30
Attribute Selectors,Attribute selectors allow style to be added to elements based on their attributes and attribute values.
Antagonism
发表于 2025-3-26 12:16:09
http://reply.papertrans.cn/23/2207/220672/220672_28.png
窗帘等
发表于 2025-3-26 15:34:50
Relationship Selectors,Relationship selectors match elements based on their relation with other elements. To understand these selectors, it is important to recognize how elements in a web document are related to each other.
Aggrandize
发表于 2025-3-26 20:13:43
Specificity,When more than one rule applies to the same element and they specify the same property, there is a priority scheme that determines which rule is given precedence. In short, CSS gives priority to the rule that has the most specific selector.