📅  最后修改于: 2022-03-11 14:47:36.157000             🧑  作者: Mango
#bannerimage {
width: 100%;
background-image: url(http://s30.postimg.org/x0ne0p5wx/bootsrap.png);
height: 405px;
background-color: purple;
background-position: center;
}