.image{width:100%}.image.bottom{position:fixed;left:0;right:0;bottom:0}.image.jump{margin:100px auto 100px auto;width:150px;height:150px;display:block;border-radius:10px}.jumpbtn{margin:auto;width:70%;height:40px;background-color:#2e7cfe;color:#fff;font-size:18px;text-align:center;line-height:40px;border-radius:20px;font-family:PingFangSC-Regular}