vertical-align

powerfulyang发表于Oct 8, 2021文字总数2156

https://developer.mozilla.org/en-US/docs/Web/CSS/vertical-align

Values for inline elements

These values vertically align the element relative to its parent element:

baseline
Aligns the baseline of the element with the baseline of its parent. The baseline of some replaced elements, like <textarea>, is not specified by the HTML specification, meaning that their behavior with this keyword may vary between browsers.
sub
Aligns the baseline of the element with the subscript-baseline of its parent.
super
Aligns the baseline of the element with the superscript-baseline of its parent.
text-top
Aligns the top of the element with the top of the parent element's font.
text-bottom
Aligns the bottom of the element with the bottom of the parent element's font.
middle
Aligns the middle of the element with the baseline plus half the x-height of the parent.
<length>
Aligns the baseline of the element to the given length above the baseline of its parent. A negative value is allowed.
<percentage>
Aligns the baseline of the element to the given percentage above the baseline of its parent, with the value being a percentage of the line-height property. A negative value is allowed.

The following values vertically align the element relative to the entire line:

top
Aligns the top of the element and its descendants with the top of the entire line.
bottom
Aligns the bottom of the element and its descendants with the bottom of the entire line.

For elements that do not have a baseline, the bottom margin edge is used instead.

baseline (and sub, super, text-top, text-bottom, <length>, and <percentage>)
Aligns the baseline of the cell with the baseline of all other cells in the row that are baseline-aligned.
top
Aligns the top padding edge of the cell with the top of the row.
middle
Centers the padding box of the cell within the row.
bottom
Aligns the bottom padding edge of the cell with the bottom of the row.

Negative values are allowed.