This split pane component is fixed: when re-sizing the browser window, it will keep the same width.

You can, however, re-size this component by dragging the divider, and it will adjust if the right component reaches it's min-width (0px in this example).

jQuery拆分面板插件 A jQuery plugin designed to provide gallery view for images

This split pane component is dynamic: when re-sizing the browser window, the width will adjust.