BuddyPress.org

@AnindyaRay I see that you’ve found a header parallax tutorial. The thing is, since you’re on localhost, it’s not as easy to ID the exact corrections which would give you a fix for what’s there in the image you uploaded. That being said, my stab in the dark is adding the following style to your child theme’s stylesheet
`body {
max-width: change to 960px;
}`
which will override the parent theme’s max-width of 1250px

If that doesn’t work, install the Firefox add http://getfirebug.com/ to find styling fix