Change max-width of site to 1000px

Hi,

I want to change the max-width of the whole site down to 1000px.

I tried
html{max-width:1000px}

That worked for the header and footer, but the slider and content areas are still 1200px.

I tried limiting those specifically with

.column-content-wrapper{max-width:1000px}
#customizr-slider-1{max-width:1000px'}

That sort of worked, but opened up some more problems. The widget area in the right sidebar wrapped to the second line, and the slider simply cut off the last 200px of the picture instead of scaling down.

So I guess I’m just hoping there’s a cleaner way to bring the max-width down from 1200px

Here’s the site,

Thank you!

-George