CSS Margin Implementation Page Center

Grammar:

margin:auto| length

Parameters:

Auto: value is set to the value of the relative edge

Length : A value or a ratio of white to a floating-point number and a unit identifier. Percentages are based on the height of the object. For inline objects, the left and right outer Yanbian distance can be negative.

Description: Retrieves and sets the epitaxial margins for the four edges of the object.

If you supply all four parameter values, the top-right-bottom-left order will function four edges.

If one is provided, it will be used for all four edges.

If two is provided, the first is used for the top-down and the second for left-right.

If three is provided, the first is used on, the second is used for left-right and the third for down.

Inline object to use this property, you must first set the object's height or weidth value, or set the position value to: absolute.

The difference between an inline object (inline element) and a block element:

feature of a block element: Starting from a new row and being able to contain other objects or inline objects, for example:

Inline objects: are presented without starting from a new row and can contain other inline objects and data.