Alert 中的字体通过css设置

Alert{
backgroundColor: #2791DB;
headerColors:#2791DB,#2791DB;
borderThicknessLeft:0;
borderThicknessRight:0;
borderThicknessTop:0;
            font-size:14;
            buttonStyleName: myCustomButtonStyleName;
}
.myCustomButtonStyleName {
            color: #ffffff;
            cornerRadius: 12;
          background-color:red;
        }