.layui-layer-title {
    background-color: #1E9FFF!important;
    color: #fff!important;
}
.layui-layer-ico {
    background: none!important;
    position: relative;
}
.layui-layer-ico::after {
    content: '\2716';
    position: absolute;
    left: 0;
    top: -5px;
    font-size: 14px;
    color: #fff;
}