HTML <colgroup> Tag

The <colgroup> tag in HTML is used to group one or more <col> elements, allowing styles or attributes to be applied to entire table columns.

• Used to group multiple <col> elements in a table.
• Helps apply styles or attributes (like width) to entire columns.
• Placed inside the <table> tag before <thead>, <tbody>, and <tfoot>.
• Improves table structure and formatting efficiency.

Syntax:

<colgroup>
 <col span="2" style="background-color: #f2f2f2;">
 <col style="background-color: #e6f7ff;">
</colgroup>

Attributes

• span: span is used to specify the number of columns that have a colgroup tag. The values are in numeric form.