Html css column class

: The Table Column element

The HTML element defines a column within a table and is used for defining common semantics on all common cells. It is generally found within a element.

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allows styling columns using CSS, but only a few properties will have an effect on the column (see the CSS 2.1 specification for a list).

Attributes

This element includes the global attributes.

This attribute contains a positive integer indicating the number of consecutive columns the element spans. If not present, its default value is 1 .

Deprecated attributes

The following attributes are deprecated and should not be used. They are documented below for reference when updating existing code and for historical interest only.

This enumerated attribute specifies how horizontal alignment of each column cell content will be handled. Possible values are:

• left , aligning the content to the left of the cell
• center , centering the content in the cell
• right , aligning the content to the right of the cell
• justify , inserting spaces into the textual content so that the content is justified in the cell

Note: To achieve the same effect as the left , center , right or justify values, do not try to set the text-align property on a selector giving a element. Because elements are not descendant of the element, they won’t inherit it.

If the table doesn’t use a colspan attribute, use the td:nth-child(an+b) CSS selector. Set a to zero and b to the position of the column in the table, e.g. td:nth-child(2) < text-align: right; >to right-align the second column.

If the table does use a colspan attribute, the effect can be achieved by combining adequate CSS attribute selectors like [colspan=n] , though this is not trivial.

The background color of the table. It is a 6-digit hexadecimal RGB code, prefixed by a ‘ # ‘. One of the predefined color keywords can also be used.

To achieve a similar effect, use the CSS background-color property.

This attribute sets the character to align the cells in a column on. Typical values for this include a period (.) when attempting to align numbers or monetary values. If align is not set to char , this attribute is ignored.

This attribute is used to indicate the number of characters to offset the column data from the alignment characters specified by the char attribute.

This attribute specifies the vertical alignment of the text within each cell of the column. Possible values for this attribute are:

• baseline , which will put the text as close to the bottom of the cell as it is possible, but align it on the baseline of the characters instead of the bottom of them. If characters are all of the size, this has the same effect as bottom .
• bottom , which will put the text as close to the bottom of the cell as it is possible;
• middle , which will center the text in the cell;
• and top , which will put the text as close to the top of the cell as it is possible.

Note: Do not try to set the vertical-align property on a selector giving a element. Because elements are not descendant of the element, they won’t inherit it.

If the table doesn’t use a colspan attribute, use the td:nth-child(an+b) CSS selector where ‘a’ is the total number of the columns in the table and ‘b’ is the ordinal position of the column in the table. Only after this selector the vertical-align property can be used.

If the table does use a colspan attribute, the effect can be achieved by combining adequate CSS attribute selectors like [colspan=n] , though this is not trivial.

This attribute specifies a default width for each column in the current column group. In addition to the standard pixel and percentage values, this attribute might take the special form 0* , which means that the width of each column in the group should be the minimum width necessary to hold the column’s contents. Relative widths such as 5* also can be used.

Examples

Technical summary

Content categories	None.
Permitted content	None; it is a void element.
Tag omission	It must have start tag, but must not have an end tag.
Permitted parents	only, though it can be implicitly defined as its start tag is not mandatory. The must not have a span attribute.
Implicit ARIA role	No corresponding role
Permitted ARIA roles	No role permitted
DOM interface	HTMLTableColElement

Specifications

Browser compatibility

BCD tables only load in the browser

See also

• CSS properties and pseudo-classes that may be specially useful to style the element:
  • the width property to control the width of the column;
  • the :nth-child pseudo-class to set the alignment on the cells of the column;
  • the text-align property to align all cells content on the same character, like ‘.’.

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  columns

  The columns CSS shorthand property sets the number of columns to use when drawing an element’s contents, as well as those columns’ widths.

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  Constituent properties

  This property is a shorthand for the following CSS properties:

  Syntax

  /* Column width */ columns: 18em; /* Column count */ columns: auto; columns: 2; /* Both column width and count */ columns: 2 auto; columns: auto 12em; columns: auto auto; /* Global values */ columns: inherit; columns: initial; columns: revert; columns: revert-layer; columns: unset; 

  The columns property may be specified as one or two of the values listed below, in any order.

  Values

  Formal definition

  • column-width : auto
  • column-count : auto
  • column-width : the absolute length, zero or larger
  • column-count : as specified
  • column-width : a length
  • column-count : an integer

  Formal syntax

  Examples

  Setting three equal columns

  HTML

  p class="content-box"> This is a bunch of text split into three columns using the CSS `columns` property. The text is equally distributed over the columns. p> 

  CSS

  .content-box  columns: 3 auto; > 

  Result

  Specifications

  Browser compatibility

  BCD tables only load in the browser

  See also

  Found a content problem with this page?

  This page was last modified on Jun 21, 2023 by MDN contributors.

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  Bootstrap Grid Examples

  Below we have collected some examples of basic Bootstrap grid layouts.

  Three Equal Columns

  The following example shows how to get a three equal-width columns starting at tablets and scaling to large desktops. On mobile phones, the columns will automatically stack:

  Example

  Three Unequal Columns

  The following example shows how to get a three various-width columns starting at tablets and scaling to large desktops:

  Example

  Two Unequal Columns

  The following example shows how to get two various-width columns starting at tablets and scaling to large desktops:

  Example

  No gutters

  Use the .row-no-gutters class to remove the gutters from a row and its columns:

  Example

  Two Columns With Two Nested Columns

  The following example shows how to get two columns starting at tablets and scaling to large desktops, with another two columns (equal widths) within the larger column (at mobile phones, these columns and their nested columns will stack):

  Example

  Mixed: Mobile And Desktop

  The Bootstrap grid system has four classes: xs (phones), sm (tablets), md (desktops), and lg (larger desktops). The classes can be combined to create more dynamic and flexible layouts.

  Tip: Each class scales up, so if you wish to set the same widths for xs and sm, you only need to specify xs.

  Example

  Tip: Remember that grid columns should add up to twelve for a row. More than that, columns will stack no matter the viewport.

  Mixed: Mobile, Tablet And Desktop

  Example

  Clear Floats

  Clear floats (with the .clearfix class) at specific breakpoints to prevent strange wrapping with uneven content:

  Example

  Offsetting Columns

  Move columns to the right using .col-md-offset-* classes. These classes increase the left margin of a column by * columns:

  Example

  Push And Pull — Change Column Ordering

  Change the order of the grid columns with .col-md-push-* and .col-md-pull-* classes:

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  CSS Multiple Columns

  The CSS multi-column layout allows easy definition of multiple columns of text — just like in newspapers:

  Daily Ping

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  CSS Multi-column Properties

  In this chapter you will learn about the following multi-column properties:

  • column-count
  • column-gap
  • column-rule-style
  • column-rule-width
  • column-rule-color
  • column-rule
  • column-span
  • column-width

  Browser Support

  The numbers in the table specify the first browser version that fully supports the property.

  Property
  column-count	50.0	10.0	52.0	9.0	37.0
  column-gap	50.0	10.0	52.0	9.0	37.0
  column-rule	50.0	10.0	52.0	9.0	37.0
  column-rule-color	50.0	10.0	52.0	9.0	37.0
  column-rule-style	50.0	10.0	52.0	9.0	37.0
  column-rule-width	50.0	10.0	52.0	9.0	37.0
  column-span	50.0	10.0	71.0	9.0	37.0
  column-width	50.0	10.0	52.0	9.0	37.0

  CSS Create Multiple Columns

  The column-count property specifies the number of columns an element should be divided into.

  The following example will divide the text in the element into 3 columns:

  Example

  CSS Specify the Gap Between Columns

  The column-gap property specifies the gap between the columns.

  The following example specifies a 40 pixels gap between the columns:

  Example

  CSS Column Rules

  The column-rule-style property specifies the style of the rule between columns:

  Example

  The column-rule-width property specifies the width of the rule between columns:

  Example

  The column-rule-color property specifies the color of the rule between columns:

  Example

  The column-rule property is a shorthand property for setting all the column-rule-* properties above.

  The following example sets the width, style, and color of the rule between columns:

  Example

  Specify How Many Columns an Element Should Span

  The column-span property specifies how many columns an element should span across.

  The following example specifies that the element should span across all columns:

  Example

  Specify The Column Width

  The column-width property specifies a suggested, optimal width for the columns.

  The following example specifies that the suggested, optimal width for the columns should be 100px:

  Example

  CSS Multi-columns Properties

  The following table lists all the multi-columns properties:

  Property	Description
  column-count	Specifies the number of columns an element should be divided into
  column-fill	Specifies how to fill columns
  column-gap	Specifies the gap between the columns
  column-rule	A shorthand property for setting all the column-rule-* properties
  column-rule-color	Specifies the color of the rule between columns
  column-rule-style	Specifies the style of the rule between columns
  column-rule-width	Specifies the width of the rule between columns
  column-span	Specifies how many columns an element should span across
  column-width	Specifies a suggested, optimal width for the columns
  columns	A shorthand property for setting column-width and column-count

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