javascript - Questions about Viewports and large image navigation -

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okay, i'm working on project using javascript , basic ui want large background image, , when select navigation menu items propels section on large image.

i've tried finding documentation on viewports , trying figure out how map applications function have had very minimal success.

it google map without user being able slide it. how in world begin approach this?

you can set background-image property in css , use javascript change background-position.


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