• 自适应屏幕大小,撑满全屏(图片宽高比会随屏幕宽高比变化)
  • 不随着滚动条滚动
.bg{
background: url("~@/assets/images/主背景.png");
position:fixed;
top: 0;
left: 0;
width:100%;
height:100%;
min-width: 1000px;
z-index:-10;
zoom: 1;
background-color: #fff;
background-repeat: no-repeat;
background-size: cover;
-webkit-background-size: cover;
-o-background-size: cover;
background-position: center 0;
}