展开全部
html图片按屏幕大小等比例缩放若浏览器允许可按Ctrl+鼠标滚轮滑动缩32313133353236313431303231363533e59b9ee7ad9431333363396464放，或用代码。
具体方法如下：Ctrl+鼠标滚轮滑动缩放
css代码与htlm代码CSS 代码如下：
#background
{
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
overflow: hidden;
background-color: #211f1f;
display:none\8;
}
#background .bg-photo
{
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
display: none;
overflow: hidden;
-webkit-background-size: cover !important;
-moz-background-size: cover !important;
-o-background-size: cover !important;
background-size: cover !important;
}
#background .bg-photo-1
{
background: url('../image/alone.jpg') no-repeat center center;
}
#background-ie {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
overflow: hidden;
background-color: #211f1f;
}HTML代码如下：
参考资料
