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2-ui/1-document/03-dom-navigation/4-select-diagonal-cells/task.md

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+importance: 5
+
+---
+
+# Select all diagonal cells
+
+Write the code to paint all diagonal table cells in red.
+
+You'll need to get all diagonal `<td>` from the `<table>` and paint them using the code:
+
+```js
+// td should be the reference to the table cell
+td.style.backgroundColor = 'red';
+```
+
+The result should be:
+
+[iframe src="solution" height=180]