如何从背景图像中删除白色模糊边框.
<div class="background-image"></div>
CSS,我尝试添加保证金:-10px,但它不起作用
.background-image {
background: no-repeat center center fixed;
background-image: url('http://www.hdpaperz.com/wallpaper/original/windows-8-wallpapers-2560x1600-2311_1.jpg') ;
background-size: cover;
display: block;
height: 100%;
left: -5px;
top:-5px;
bottom:-5px;
position: fixed;
right: -5px;
z-index: 1;
margin:0px auto;
-webkit-filter: blur(5px);
-moz-filter: blur(5px);
-o-filter: blur(5px);
-ms-filter: blur(5px);
filter: blur(5px);
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
}