.popup1{ position: absolute; z-index: 999; } /*标题*/ .popup1 .popup-header { background: rgb(15, 85, 195); color: rgb(255, 255, 255); font-size: 15rem; padding: 10rem; text-align: left; } /*关闭按钮*/ .popup1 .popup-header .popup1-close-button { position: absolute; right: 10rem; cursor: pointer; } /*内容*/ .popup1 .popup-content { padding: 5rem; background: rgba(5, 45, 115, 0.7); color: rgb(160, 255, 255); text-align: left; } /*提示框-下三角*/ .popup1 .popup-tip { position: absolute; bottom: -25rem; left: 50%; margin-left: -15rem; width: 0; height: 0; border-left: 15rem solid transparent; border-right: 15rem solid transparent; border-top: 25rem solid rgba(5, 45, 115, 0.7); }