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Tables

Tables. 18 February 2014. A Basic Table. <table> < tr > <td> </td> </ tr > </ table>. Table (TABLE) Contains TABLE ROWS (TR) Contains TABLE DATA (TD) Data can contain anything Text Lists Other tables Pictures …. Tables. Required Table <table> </table> Row < tr > </ tr >

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Tables

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  1. Tables 18 February 2014

  2. A Basic Table <table> <tr> <td> </td> </tr> </table> Table (TABLE) Contains TABLE ROWS (TR) Contains TABLE DATA (TD) Data can contain anything • Text • Lists • Other tables • Pictures • …

  3. Tables • Required • Table <table> </table> • Row <tr> </tr> • Data <td> </td> • Optional elements • Header (replaces data) <th> </th> • Caption <caption> </caption> • For multipage tables • Thead <thead> (contains rows) </thead> • Tfoot <tfoot> (contains rows) </tfoot> • Tbody <tbody> (contains rows) </tbody> • REQUIRED if thead or tfoot

  4. Tables • Need to format the parts • Each has borders • Can collapse

  5. Need to format each part

  6. Table borders • Every element in the table has a border • Adjacent cells can have their own borders (default) or they can share a border (border-collapse)

  7. Centering Tables • They have width. Use margins. • Elements in table can have any text align you want

  8. Formatting elements • Often need to repeat format on multiple elements • CSS notation th,tr,td{ border: none; }

  9. Merging Cells • CAN’T BE DONE IN CSS • HTML attributes on td • colspan=“n” • rowspan=“n”

  10. Customization • Borders • Colors • Widths • Spacing • Backgrounds • Fonts • Spacing

  11. Fixed Width • Tables will adjust columns based on content • What if you want them fixed width? • Fixed and same col { width: …; } • Fixed and different <table> <col width=“…”> <tr> OR class per td (but have to put it on every td)

  12. Best solution requires new feature • What are trees? • HTML tags create one! • Called the DOM (Document Object Model) • CSS will allow us to format selectively based on the tree

  13. Most Elegant Solution: CSS Selectors • context tag { • Applies to any tag inside context • Space is a descendant selector • context > tag { • Applies to any tag directly inside context • > is a child selector • Context + tag { • Applies only to a tag that DIRECTLY follows a context • + is an adjacent sibling selector

  14. Tables for Page Layout? • Better to save tables for actual tables • For page layout: floating divs • For navigation and pictures: lists and divs

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