CSS+DIV布局
#Layer1 { position:absolute; width:98%; height:1091px; z-index:1; left: 35px; top: 10px;}
<!doctype html><html><head><meta charset="utf-8" /><title>宽度百分比</title><style type="text/css">*{ margin:0; padding:0;}#Layer1 { position:absolute; width:98%; height:1091px; z-index:1; left: 35px; top: 10px; background:blue;}</style></head><div id="Layer1"></div><body></body></html>
[解决办法]
<!doctype html><html><head><meta charset="gbk" /><title>宽度百分比</title><style type="text/css">*{ margin:0; padding:0;}#Layer1 { margin:0 auto; width:98%; height:1091px; background:blue;}</style></head><div id="Layer1"></div><body></body></html>