How to do that when you hover on the line, it changed color?
This should be done without links and connecting tags <style></style> .
I write and nothing happens
<tr onmouseover="this.style.backgroundColor='#555';" onmouseout="this.style.backgroundColor='#333';"></tr> <tr onmouseover="this.style.backgroundColor='#555';" onmouseout="this.style.backgroundColor='#333';"></tr>