JSFiddle - React, Tailwind, and code Playground
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td {font-family: Times; text-align: center}
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<p>This tests that the background-image of a table row "covers exactly the full area of all cells that originate in the row" as per <a href="http://www.w3.org/TR/CSS2/tables.html#table-layers">section 17.5.1 of the CSS 2.1 spec</a>. In particular, that the background-image covers the full area of cells that span outside of the row (i.e. have a rowspan > 1). This test PASSED if you do not see the word FAIL.</p>
<table style="width: 50px; height: 100px; border-collapse: collapse">
<tr style="background: red url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADIAAABkCAIAAABLivQMAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAF5JREFUeNrszsEJADAIBLBz/5ULOoSfCskEqaTzn9LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tI61uoXLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLa2tEWAA7fqVOeh+aDoAAAAASUVORK5CYII='); height: 50px">
<td style="color: yellow; vertical-align: bottom" rowspan="2">FAIL</td>
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