CSS thorough research (1)

Github Pages Blog Basic Selector

1. Tag Selector

   }

2. Category

   ‘

   , the conflict takes the former
3. ID Selector

   }

Composite selector: Two or more selectors that connect in different ways

1. Intersection "' H3.class_name {...} The first one must be a tag selector, the second must be (category selector) or (ID selector), no space in the middle, must be written continuously
2. and set selector aselector, b selector ismore than one selector
3. Descendant Selector

   div p {/* div below P, including all Descendants */} '

   Direct descendants of the Div>p ' div

CSS inheritance contains small containers that inherit the style style of the large container that contains it

```

AB Cd

h1{color:red; text-decoration:underline;} em {color:blue;} As a result, EM inherits the H1 underline.

CSS Precedence

Inline style (style=) > ID style (#id) > class style (. Class) > Markup Style (div)

Two class conflicts, take the former