Onmouseover and onmouseout JavaScript and CSS implementations

Recently, in OA programming, You Need To hover your mouse over and then change the background color of the <tr> element in the table.

JavaScript and CSS are implemented in two ways, which are summarized as follows:

The javascript implementation method is as follows:

Onmouseover = "This. style. backgroundcolor = '# ffffcc';" onmouseout = "This. style. backgroundcolor = 'ffffff ';"

This method can be used in the <tr> element.

Normal tests in IE8 and firefox15

The CSS implementation method is as follows:

Table TR: hover {
Background: # ffffcc;
Color: black;
}

This method must be used in the <Table> element.

The record is as follows, which needs to be improved...