Increase width of Menu Bar

Not sure why this keeps being deleted after I submit. The other day I asked if there was a way to increase menu bar width. Someone provided me the following code which corrected the issue. However I forgot to provide that the site is a Reactive site. And when I implemented the following code the reactive option stopped working. Any easy fix to the problem? Below is the site URL and Code.

URL: 6a1.d5f.myftpupload.com/

.width-container {
    width: 1024px !important;
    margin: 0 auto;
}

.right-wrapper {
    float: right;
    width: 700px !important;
}