Some details are summarized in css

css weight problem

 ! important> inline style *> ID> class | attribute> tag selector> wildcard

The selector compares the order from right to left

 

Box model

boder  padding  margin  content(width +height)

They have upper and lower portions of the left and right top left right bottom 

                          transparent transparent color

 

Vertical center line of text is to make the height of the same height and line-height

text-indent the first line indent for general use em display 

 

text-decoration: line-through underlined

text-decoration: underline Underline

text-decoration: none underlined canceled

 

 

img middle mode process space

 

 

Enterprise development component-based development options after the style can define function

 

Sequentially padding the left lower right padding (0,0,0,0)

Father with child Jedi principles

 

Only absolute positioning is positioning will have no parent parent positioned according to the document will be based on his positioning are targeted to have a parent locate the nearest location

 

The positioning relative to the original position

 

Centered wording

The width of the high negative 2

 

 

 

Pseudo-element-level elements inherently fast inline-block to be modified by

Clear float

 

Implementation network data can still slow to load

Another method

 

 

Adaptive Method

font-size font is high