查看“Template:背景”的源代码

<includeonly>{{#if:{{{1|}}}|<div id="pagebg" style="display:none" data-bg="{{{1}}}"></div>|}}
{{#css:
  body {
	background:url("{{{1}}}") no-repeat fixed 50% 0;
	background-size:cover;
  }
}}
</includeonly><noinclude>{{面包屑|模板}}{{模板文档}}</noinclude>