Methods and systems for applying responsive design to subframes on a web page

Computer code stored in a non-transient medium for rearranging content within an existing displayed sub-region of a web page in response to resizing the existing displayed sub-region, the computer code configured to implement steps comprising:

• detecting resizing of a first sub-region of the webpage by a user dragging a slidable border of the sub-region;
• determining a span value associated with parameters of the first resized sub-region;
• defining minimum parameters of the first resized sub-region;
• determining a subset of the parameters of the first resized sub-region that fit within the span value based on the minimum parameters of the resized sub-region, wherein the parameters of the first resized sub-region comprises a fixed parameter and a dynamic parameter;
• automatically rearranging the contents of a second sub-region of the webpage in response to the resizing of the first resized sub-region;
• and
• displaying the first and second resized sub-regions of the webpage with a web browser.