css/css-tables/html-to-css-mapping-1.html

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<link rel="help" href="https://drafts.csswg.org/css-tables-3/#fixup">
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<main>

    <h1>HTML-2-CSS Mapping</h1>
    <p>Checks that browsers implement properly the html2css stylesheet (rules without attributes)</p>

    <hr/>
    <p>You should see a 5 2px blue square here, separated by 2px each:</p>
    <p>Because of the lack of the table element, border-spacing is 0; padding on each td should be 1px on each side. 1px*2*5=10px.</p>
    <div><table><tbody style="background: blue; height: 2px"><tr><td></td><td></td><td></td><td></td><td></tr></tbody></table></div>

    <hr/>
    <p>You should see a 10px blue square here:</p>
    <p>Because of the lack of the table element, border-spacing is 0; padding on each td should be 1px on each side. 1px*2*5=10px.</p>
    <div><table class="to-remove"><tbody style="background: blue; height: 10px"><tr><td></td><td></td><td></td><td></td><td></tr></tbody></table></div>

    <hr/>
    <p>You should see a 12px blue square here:</p>
    <p>The table has the background; x-td elements have no padding, only the border-spacing remains. 6*2px=12px.</p>
    <div><table style="height: 12px; background: blue;" class="no-td"><tbody><tr><td></td><td></td><td></td><td></td><td></tr></tbody></table></div>

    <hr/>
    <p>You shouldn't see anything here:</p>
    <p>The table has the background but is empty; it does not apply border-spacing in this case.</p>
    <div><table style="height: 2px; background: red"></table></div>

    <script>void function() { var table; while(table = document.querySelector('.to-remove')) table.parentNode.replaceChild(table.firstChild,table) }();</script>
    <script>void function() { var td; while(td = document.querySelector('table.no-td td')) td.parentNode.replaceChild(document.createElement('x-td'),td) }();</script>

</main>

<script>

    var i = 1;
    generate_tests(assert_equals, [
        [
            "HTML -> CSS Mapping is applied correctly on proper table markup (border-spacing, padding)",
            document.querySelector("main > div:nth-of-type("+(i++)+") table").offsetWidth,
            22
        ],
        [
            "HTML -> CSS Mapping is applied correctly on improper table markup (no table => no border-spacing, but padding)",
            document.querySelector("main > div:nth-of-type("+(i++)+") tbody").offsetWidth,
            10
        ],
        [
            "HTML -> CSS Mapping is applied correctly on improper table markup (no td => border-spacing, but no padding)",
            document.querySelector("main > div:nth-of-type("+(i++)+") table").offsetWidth,
            12
        ],
        [
            "HTML -> CSS Mapping is applied correctly on empty table markup (no content => no border-spacing, no padding)",
            document.querySelector("main > div:nth-of-type("+(i++)+") table").offsetWidth,
            0
        ],
    ])

</script>