My intention is to create a menu at the top of the page which remains at the top of the page even when the user scrolls (like Gmail's recent feature which has the commonly-used buttons scrolling down with the user so that it allows them to perform operations on messages without having to scroll to the top of the page).My intention is to create a menu at the top of
阅读背景：
CSS - 使内容出现在固定DIV元素下面
来源：互联网
分享到：
