.bg{
background-image:url('../../image/mine.png');
background-position:50%;
background-repeat:no-repeat;
background-size:cover;
//如果还要透明效果加上下面这两行
opacity:0.3;
filter:alpha(opacity=30);
}
.bg{
background-image:url('../../image/mine.png');
background-position:50%;
background-repeat:no-repeat;
background-size:cover;
//如果还要透明效果加上下面这两行
opacity:0.3;
filter:alpha(opacity=30);
}