使用CSS3改变文本选中的默认颜色

::selection {
    background:#d3d3d3; 
    color:#555;
}

::-moz-selection {
    background:#d3d3d3; 
    color:#555;
}

::-webkit-selection {
    background:#d3d3d3; 
    color:#555;
}
::selection {
    background:#d3d3d3;