What is th tag in html

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Cyber Security. C Programming. Control System. Data Mining. Data Warehouse. For a full explanation of these attributes, see HTML 5 global attributes. Event handler content attributes enable you to invoke a script from within your HTML. The script is invoked when a certain "event" occurs. Each event handler content attribute deals with a different event. For a full list of event handlers, see HTML 5 event handler content attributes. Run Editor Preview. This attribute contains a non-negative integer value that indicates for how many columns the cell extends.

Its default value is 1. Values higher than will be considered as incorrect and will be set to the default value 1. This attribute contains a non-negative integer value that indicates for how many rows the cell extends.

Values higher than are clipped down to It may have the following values:. If the scope attribute is not specified, or its value is not row , col , or rowgroup , or colgroup , then browsers automatically select the set of cells to which the header cell applies. This enumerated attribute specifies how the cell content's horizontal alignment will be handled.

Possible values are:. This attribute contains a list of space-separated strings. Each string is the id of a group of cells that this header applies to. Note: Do not use this attribute as it is obsolete in the latest standard: use the scope attribute instead.

This attribute defines the background color of each cell in a column. It consists of a 6-digit hexadecimal code as defined in sRGB and is prefixed by ' '. This attribute may be used with one of sixteen predefined color strings:.