Vertical-align - CSS: Cascading Style Sheets - MDN Web Docs
Có thể bạn quan tâm
The vertical-align CSS property sets vertical alignment of an inline, inline-block or table-cell box.
Try it
The vertical-align property can be used in two contexts:
- To vertically align an inline-level element's box inside its containing line box. For example, it could be used to vertically position an image in a line of text.
- To vertically align the content of a cell in a table.
Note that vertical-align only applies to inline, inline-block and table-cell elements: you can't use it to vertically align block-level elements.
Syntax
css/* Keyword values */ vertical-align: baseline; vertical-align: sub; vertical-align: super; vertical-align: text-top; vertical-align: text-bottom; vertical-align: middle; vertical-align: top; vertical-align: bottom; /* <length> values */ vertical-align: 10em; vertical-align: 4px; /* <percentage> values */ vertical-align: 20%; /* Global values */ vertical-align: inherit; vertical-align: initial; vertical-align: revert; vertical-align: revert-layer; vertical-align: unset;The vertical-align property is specified as one of the values listed below.
Values for inline elements
Parent-relative values
These values vertically align the element relative to its parent element:
baselineAligns 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.
subAligns the baseline of the element with the subscript-baseline of its parent.
superAligns the baseline of the element with the superscript-baseline of its parent.
text-topAligns the top of the element with the top of the parent element's font.
text-bottomAligns the bottom of the element with the bottom of the parent element's font.
middleAligns 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.
Line-relative values
The following values vertically align the element relative to the entire line:
topAligns the top of the element and its descendants with the top of the entire line.
bottomAligns 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.
Values for table cells
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.
topAligns the top padding edge of the cell with the top of the row.
middleCenters the padding box of the cell within the row.
bottomAligns the bottom padding edge of the cell with the bottom of the row.
Negative values are allowed.
Formal definition
Initial value | baseline |
---|---|
Applies to | inline-level and table-cell elements. It also applies to ::first-letter and ::first-line. |
Inherited | no |
Percentages | refer to the line-height of the element itself |
Computed value | for percentage and length values, the absolute length, otherwise the keyword as specified |
Animation type | a length |
Formal syntax
vertical-align = [ first | last ] || <'alignment-baseline'> || <'baseline-shift'> <alignment-baseline> = baseline | text-bottom | alphabetic | ideographic | middle | central | mathematical | text-top <baseline-shift> = <length-percentage> | sub | super | top | center | bottom <length-percentage> = <length> | <percentage>Examples
Basic example
HTML
html<div> An <img src="frame_image.svg" alt="link" width="32" height="32" /> image with a default alignment. </div> <div> An <img class="top" src="frame_image.svg" alt="link" width="32" height="32" /> image with a text-top alignment. </div> <div> An <img class="bottom" src="frame_image.svg" alt="link" width="32" height="32" /> image with a text-bottom alignment. </div> <div> An <img class="middle" src="frame_image.svg" alt="link" width="32" height="32" /> image with a middle alignment. </div>CSS
cssimg.top { vertical-align: text-top; } img.bottom { vertical-align: text-bottom; } img.middle { vertical-align: middle; }Result
Vertical alignment in a line box
HTML
html<p> top: <img style="vertical-align: top" src="star.png" alt="star"/> middle: <img style="vertical-align: middle" src="star.png" alt="star"/> bottom: <img style="vertical-align: bottom" src="star.png" alt="star"/> super: <img style="vertical-align: super" src="star.png" alt="star"/> sub: <img style="vertical-align: sub" src="star.png" alt="star"/> </p> <p> text-top: <img style="vertical-align: text-top" src="star.png" alt="star"/> text-bottom: <img style="vertical-align: text-bottom" src="star.png" alt="star"/> 0.2em: <img style="vertical-align: 0.2em" src="star.png" alt="star"/> -1em: <img style="vertical-align: -1em" src="star.png" alt="star"/> 20%: <img style="vertical-align: 20%" src="star.png" alt="star"/> -100%: <img style="vertical-align: -100%" src="star.png" alt="star"/> </p> #* { box-sizing: border-box; } img { margin-right: 0.5em; } p { height: 3em; padding: 0 0.5em; font-family: monospace; text-decoration: underline overline; margin-left: auto; margin-right: auto; width: 80%; }Result
Vertical alignment in a table cell
In this example, we have a table with a single row containing six cells. The row sets vertical-align to bottom as the default value.
- The first four cells each set their own vertical-align values, and these override the row's value.
- The fifth cell does not set any vertical-align value, so inherits the row's value.
The sixth cell is only used to ensure that the cells are tall enough to see the effect.
HTML
html<table> <tr class="bottom"> <td class="baseline">baseline</td> <td class="top">top</td> <td class="middle">middle</td> <td>bottom</td> <td>Row's style</td> <td> Lorem ipsum dolor sit amet, consectetur adipiscing elit. Suspendisse pretium felis eu sem mattis vulputate. </td> </tr> </table>CSS
csstable { margin-left: auto; margin-right: auto; width: 80%; } table, th, td { border: 1px solid black; } td { padding: 0.5em; font-family: monospace; } .bottom { vertical-align: bottom; } .baseline { vertical-align: baseline; } .top { vertical-align: top; } .middle { vertical-align: middle; }Result
Specifications
Specification |
---|
Cascading Style Sheets Level 2 Revision 2 (CSS 2.2) Specification # propdef-vertical-align |
Browser compatibility
BCD tables only load in the browser
See also
- Typical use cases of flexbox, section "Center item"
- line-height, text-align, margin
- Understanding vertical-align, or "How (Not) To Vertically Center Content"
- Vertical-Align: All You Need To Know
Từ khóa » Html Center Column In Table
-
How To Center Align Text In Table Cells In HTML? - Tutorialspoint
-
CSS Table Alignment - W3Schools
-
How To Center The Contents Of An HTML Table? - Stack Overflow
-
How To Center The Text In The HTML Table Row - W3docs
-
How To Center A Table In HTML - Computer Hope
-
Center A Table With CSS - Scott Granneman
-
(Archives) HTML: Tables: Alignment Within A Table | UW-Eau Claire
-
» - HTML">
» - HTML How To Center A Table With CSS (Quick Guide) - WpDataTables
Advanced Table Settings: Column Width, Alignment And Merging Cells
: The Table Column Element - HTML - MDN Web Docs - Mozilla Specifying Horizontal Text Alignment For Cross Table Cells
How To Place Table Text Into Center Using Bootstrap? - GeeksforGeeks
Table Size & Alignment : MGA - Web Development Tutorials
Copyright © 2022 | Thiết Kế Truyền Hình Cáp Sông Thu