PHP (CSS style)

Layout page when large color block small color block ... (Is wide-height) content
Layout: Floating, positioning, display, level

float: float (style name): Value: Left Right
Set a parent tag, set the width height, inside the floating!!!!!!!!!!!!!!!!!
Out-of-section: Overflow hidden Scorll
Overflow-x:
Overflow-y:
Box Model:
From inside to outside: Contents > Padding > Borders > Margins
Corresponding style: Content >padding>border>margin
The style of the box model is divided up and down: top left right botton,
Padding:> upper right-left style
box model adaptive; box-sizing:border:box
Margin first sub-tab setting margin acts on parent tag

Show display

<p style= "Clear:both;" ></p>: Cancel float

PHP (CSS style)