<!doctype html> <script src='/resources/testharness.js'></script> <script src='/resources/testharnessreport.js'></script> <link rel='stylesheet' href='./support/base.css' /> <link rel="help" href="https://drafts.csswg.org/css-tables-3/#missing-cells-fixup"> <link rel="help" href="https://drafts.csswg.org/css-tables-3/#dimensioning-the-row-column-grid"> <main> <h1>HTML5 Table Formatting algorithm (row/column grid computation)</h1> <p>Verifies how browsers deal with implicit tracks from which no cell does originate</p> <hr/> <p>This should be a 100px by 100px blue square:</p> <p>The table grid is 1x1, so the table is not empty and follows step 3A of the table layout algorithm (which adds anonymous cell boxes)</p> <p>The consecutive tracks were merged together because they are not all defined explicitely by a table-column or a table-row, and share the same set of cells</p> <p>Two 25px border-spacing causes the addition of 50px (track is 50x50)</p> <x-table style="background: blue; border-spacing: 25px"> <x-tr><x-td style="padding: 25px"></x-td></x-tr> </x-table> <hr/> <p>This should be a 100px by 100px blue square:</p> <p>The table grid is 1x1, so the table is not empty and follows step 3A of the table layout algorithm (which adds anonymous cell boxes)</p> <p>The consecutive tracks were merged together because they are not all defined explicitely by a table-column or a table-row, and share the same set of cells</p> <p>Two 25px border-spacing causes the addition of 50px (track is 50x50)</p> <x-table style="background: blue; border-spacing: 25px"> <x-tr><x-td style="padding: 25px" rowspan=2 colspan=2></x-td></x-tr> </x-table> <hr/> <p>This should be a 75px by 75px blue square:</p> <p>The table grid is 2x2, so the table is not empty and follows step 3A of the table layout algorithm (which adds anonymous cell boxes)</p> <p>The consecutive tracks were not merged together because they are all defined explicitely by a table-column or a table-row</p> <p>Three 25px border-spacing causes the addition of 75px (tracks are 0x0)</p> <x-table style="background: blue; border-spacing: 25px"> <x-col></x-col> <x-col></x-col> <x-tr><x-td style="padding: 0px" rowspan=2 colspan=2></x-td></x-tr> <x-tr></x-tr> </x-table> <hr/> <p>This should be a 100px by 100px blue square:</p> <p>The table grid is 2x2, so the table is not empty and follows step 3A of the table layout algorithm (which adds anonymous cell boxes)</p> <p>The consecutive tracks were not merged together because they are all defined explicitely by a table-column or a table-row</p> <p>Three 25px border-spacing causes the addition of 75px (tracks are 12.5x12.5)</p> <x-table style="background: blue; border-spacing: 25px"> <x-col></x-col> <x-col></x-col> <x-tr><x-td style="padding: 25px" rowspan=2 colspan=2></x-td></x-tr> <x-tr></x-tr> </x-table> </main> <script> while(true) { var xtd = document.querySelector('x-td[rowspan], x-td[colspan]'); if(!xtd) break; var td = document.createElement('td'); for(var i = xtd.attributes.length; i--;) { td.setAttribute(xtd.attributes[i].name,xtd.attributes[i].value) } xtd.parentNode.replaceChild(td,xtd); } document.body.onload = () => { generate_tests(assert_equals, [ [ "Control test for table-cell padding and border-spacing, etc (width)", document.querySelector("x-table:nth-of-type(1)").offsetWidth, 100 ], [ "Control test for table-cell padding and border-spacing (height)", document.querySelector("x-table:nth-of-type(1)").offsetHeight, 100 ], [ "Anonymous consecutive columns spanned by the same set of cells are merged", document.querySelector("x-table:nth-of-type(2)").offsetWidth, 100 ], [ "Anonymous consecutive rows spanned by the same set of cells are merged", document.querySelector("x-table:nth-of-type(2)").offsetHeight, 100 ], [ "Explicitely-defined consecutive columns spanned by the same set of cells are not merged", document.querySelector("x-table:nth-of-type(3)").offsetWidth, 75 ], [ "Explicitely-defined consecutive rows spanned by the same set of cells are not merged", document.querySelector("x-table:nth-of-type(3)").offsetHeight, 75 ], [ "Explicitely-defined consecutive columns spanned by the same set of cells are not merged, and cells span across border-spacing", document.querySelector("x-table:nth-of-type(4) x-col").getBoundingClientRect().width, 12.5 ], [ "Explicitely-defined consecutive rows spanned by the same set of cells are not merged, and cells span across border-spacing", document.querySelector("x-table:nth-of-type(4) x-tr").getBoundingClientRect().height, 12.5 ], ]) } </script>