如何使用Responsive Filemananger在Ckeditor中制作响应式图像

I'm using Ckeditor and Responsive filemanager. I want that uploaded images were responsive. But when I upload an image, and see it on the article page, it isn't responsive. Even the image goes beyond div. How can I make it responsive?

I find the solution. When adding image to ckeditor just need in ckeditor property window. Instead of pixels use percent. Screenshot