纯css实现的跟随网页浮动的层

sherray 7 0 PDF 2020-12-23 02:12:23

<!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”> <html xmlns=”http://www.w3.org/1999/xhtml”> <head> <title>软件开发网</title> <style type=”text/css”> #sticky_footer { width: 100%; backgro