构建跨浏览器兼容站点的时间顺序是什么？

I am working on my first project that requires me to worry about cross browser compatibility. Since this is my first time doing so, I dont know how to go about completing the project. I am specifically worried about IE. Should I complete my project in a more graceful browser then hack it to work in IE, or should I simultaneously build my program up in both environments?I am working on my first project that requires