The Rows and Cols attributes

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The Rows and Cols attributes

The attributes of the FRAMESET element are COLS (columns) and ROWS. They determine how many frames the frame set is divided into. These attributes may be blank, or may consist of a list of one or more values separated by commas or spaces. Each such value determines the width (for columns) and height (for rows) of the regions; the number of width and height values supplied determines how many rows and columns, respectively, are created. The default for each is one. For example if you have:

<FRAMESET cols="20%,30%,50%">

in which there is no ROWS value, the frame set is divided vertically into three regions: the first region's width is 20% of the current frame set (or browser window if this frame set is at the top level), the second region's width is 30%, and the third region's width is 50%. When there is only one frame set in the document, these widths apply to the entire browser window. Similarly, when there is a ROWS value but no COLS value, the frame set is divided horizontally into regions. When values are supplied for both attributes, the frame set is divided into a grid of rows and columns.

The ROWS and COLS attributes take comma-separateds lists of values. These values can be absolute pixel values, percentage values between 1 and 100, or relative scaling values. The number of rows and columns is implicit in the number of values in the respective list. Since the total height of all the rows must equal the height of the window, row heights might be normalized to achieve this. If the rows (or cols) attribute values are unspecified, then the number of rows (or columns) is assumed to be one, and it may be arbitrarily sized to fit.