<Ul> <Li> Simplifying maintenance of content shared across all or most pages, such as navigation data . If an item needs to be added to a sidebar navigation menu, the web page author needs to change only one web page file, whereas each individual page on a traditional non-frameset website would have to be edited if the sidebar menu appeared on all of them . </Li> <Li> Reducing the amount of bandwidth needed by not re-downloading parts of the page which had not changed . </Li> <Li> Allowing several pieces of information to be viewed side by side, with the ability for each section to be scrolled independently . This might include the side - by - side comparison of two pictures or videos, or two different ways to understand something, such as an independently scrolling page of text next to video, images, animation, 3D rotating objects, etc . </Li> <Li> Allowing footnotes or digressions to appear in a dedicated section of the page when linked to, so that the reader does not lose their place in the main text . </Li> </Ul> <Li> Simplifying maintenance of content shared across all or most pages, such as navigation data . If an item needs to be added to a sidebar navigation menu, the web page author needs to change only one web page file, whereas each individual page on a traditional non-frameset website would have to be edited if the sidebar menu appeared on all of them . </Li> <Li> Reducing the amount of bandwidth needed by not re-downloading parts of the page which had not changed . </Li> <Li> Allowing several pieces of information to be viewed side by side, with the ability for each section to be scrolled independently . This might include the side - by - side comparison of two pictures or videos, or two different ways to understand something, such as an independently scrolling page of text next to video, images, animation, 3D rotating objects, etc . </Li>

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