html - What does the "container" div class do on Weebly themes? -



html - What does the "container" div class do on Weebly themes? -

i'm quite beginner css , html i'm trying larn while making webpage on weebly

anyways, see container div class after every div id. looking through css , saw margin , width property div class itself, saw container class kid element after id selectors. wondering container class , why needed.

example:

.container { margin: 0 auto; width: 960px; } #nav-wrap { background: url(nav-bg.jpg); box-shadow:0 1px 2px 1px rgba(0,0,0,0.25); position:relative; z-index:3; } #nav-wrap .container { clear: both; overflow: hidden; position: relative; width: 960px; box-shadow:none; }

in illustration above, area #nav-wrap indicate , area #nav.wrap .container indicate?

thanks!

#nav-wrap correspond html tag id nav-wrap. nav-wrap container compound styling; area both nav-wrap , container styles apply. read source code. if tinker with, might find drawing boxes outline or changing div background colors instructive.

html css weebly

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