CSS 逻辑属性与值

Logical properties and values use the abstract terms block and inline to describe the direction in which they flow. The physical meaning of these terms depends on the writing mode.

Block dimension

The dimension perpendicular to the flow of text within a line, i.e., the vertical dimension in horizontal writing modes, and the horizontal dimension in vertical writing modes. For standard English text, it is the vertical dimension.

Inline dimension

The dimension parallel to the flow of text within a line, i.e., the horizontal dimension in horizontal writing modes, and the vertical dimension in vertical writing modes. For standard English text, it is the horizontal dimension.

• block-size
• inline-size
• max-block-size (en-US)
• max-inline-size (en-US)
• min-block-size (en-US)
• min-inline-size (en-US)

• border-block
• border-block-color (en-US)
• border-block-end
• border-block-end-color (en-US)
• border-block-end-style (en-US)
• border-block-end-width (en-US)
• border-block-start (en-US)
• border-block-start-color (en-US)
• border-block-start-style (en-US)
• border-block-start-width (en-US)
• border-block-style (en-US)
• border-block-width (en-US)
• border-color (logical 实验性 keyword)
• border-inline (en-US)
• border-inline-color
• border-inline-end (en-US)
• border-inline-end-color (en-US)
• border-inline-end-style (en-US)
• border-inline-end-width (en-US)
• border-inline-start (en-US)
• border-inline-start-color (en-US)
• border-inline-start-style (en-US)
• border-inline-start-width (en-US)
• border-inline-style (en-US)
• border-inline-width (en-US)
• border-start-start-radius (en-US)
• border-start-end-radius (en-US)
• border-end-start-radius (en-US)
• border-end-end-radius (en-US)
• border-style (logical 实验性 keyword)
• border-width (logical 实验性 keyword)
• margin (logical 实验性 keyword)
• margin-block
• margin-block-end (en-US)
• margin-block-start
• margin-inline (en-US)
• margin-inline-end (en-US)
• margin-inline-start (en-US)
• padding (logical 实验性 keyword)
• padding-block (en-US)
• padding-block-end (en-US)
• padding-block-start (en-US)
• padding-inline (en-US)
• padding-inline-end (en-US)
• padding-inline-start

• clear (inline-end and inline-start keywords)
• float (inline-end and inline-start keywords)
• inset (en-US)
• inset-block (en-US)
• inset-block-end (en-US)
• inset-block-start (en-US)
• inset-inline (en-US)
• inset-inline-end (en-US)
• inset-inline-start (en-US)

• caption-side (inline-end and inline-start keywords)
• overflow-block
• overflow-inline (en-US)
• overscroll-behavior-block (en-US)
• overscroll-behavior-inline (en-US)
• resize (block and inline keywords)
• text-align (end and start keywords)

• offset-block-end (en-US) 非标准 已弃用 (now inset-block-end (en-US) 实验性 )
• offset-block-start (en-US) 非标准 已弃用 (now inset-block-start (en-US) 实验性 )
• offset-inline-end (en-US) 非标准 已弃用 (now inset-inline-end (en-US) 实验性 )
• offset-inline-start (en-US) 非标准 已弃用 (now inset-inline-start (en-US) 实验性 )

• Basic concepts of logical properties and values
• Logical Properties for sizing (en-US)
• Logical Properties for margins, borders and padding (en-US)
• Logical Properties for floating and positioning

In general:

• Firefox has support for the mapped properties — where there is a direct mapping from the physical to the logical version.
• Chrome, from version 69, has support for the mapped properties.
• Edge, from version 79, has the same support as Chrome.
• Firefox 66 introduces support for two value shorthands, also behind a flag in Chrome.
• Internet Explorer has no support.

See the individual property pages for full compatibility information.