css 用图片平铺边框

正文开始

~~~ dashed border animation
~~~ [/upload/post_files/120x2dfYoZf2ovw8.html](/upload/post_files/120x2dfYoZf2ovw8.html)

正文结束

Flex 布局教程:语法篇 css3 placeholder字体颜色等样式