Facebook登录按钮悬停框

Question

如何使用Facebook登录按钮创建一个悬停在页面右下角的框？

Answer 1

HTML - 将其放在您的文档中的任何位置并填写您需要的内容

<div id='bottom-right-corner'></div>

CSS

#bottom-right-corner {
    position: fixed;  /* Pin to the window */
    z-index: 9999; /* Keep on top of all other content */
    bottom: 0px; /* Keep the bottom on the bottom of the page */
    right: 20px; /* Keep the right just away from the right edge */
}