colgroup tag in html
The <colgroup> tag specifies a group of one or more columns in a table for formatting. The <colgroup> tag is useful for applying styles to entire columns, instead of repeating the styles for each cell, for each row. The <colgroup> tag must be a child of a <table> element, after any <caption> elements and before any <thead>, <tbody>, <tfoot>, and <tr> elements. To define different properties to a column within a <colgroup>, use the <col> tag within the <colgroup> tag. <!DOCTYPE html> <html> <head> </head> <body> <table> <colgroup> <col span="2" style="background-color:red"> <col style="background-color:yellow"> </colgroup> <tr> <th>ISBN</th> <th>Title</th> <th>Price<...