问题
I am building a mobile website and need a fixed positioned button (for quick link to scroll to top) that should move across while scrolling the screen. fixed position is not supported by mobile browsers. Can anyone suggest the way around for the same. I am using twitter bootstrap. I have observed fixed position header and footers for mobile in jquery mobile framework but could use it in twitter bootstrap page.
Thanks in advance.
回答1:
You can use a navbar-fixed-top or navbar-fixed-bottom navbar on your site and that will function properly on mobile devices. Refer to the Optional Display variations section under navbars http://twitter.github.com/bootstrap/components.html#navbar.
来源：https://stackoverflow.com/questions/12051532/fixed-positioned-button-in-mobile-website