鼠标滑过背景变色

<div style="height: 150px;">
                        <div style="border-bottom: 1px solid #d3d3d3; height: 142px;
                        "onmousemove="this.style.backgroundColor='#dedbdb'
                         "onmouseout="this.style.backgroundColor='#fff'">
                       
                        </div>
                   
                     <div style="border-bottom:5px solid #00C; height:200px; "onmousemove="this.style.backgroundColor='#f00'
                        "onmouseout="this.style.backgroundColor='#ff0'
                        ">
                       
                        </div>
                    </div>