toast样式是什么,toast提示设计

.toast-error { position: fixed; z-index: 10000; top: 50%; left: 50%; width: px2rem(750); transform: translateX(-50%); padding: 0 px2rem(30); height: px2rem(149); line-height: px2rem(149); opacity: 0.63; background: #000000; border-radius: px2rem(21); text-align: center; color: #FFFFFF; }