bootstrap navbar-static-top menu breaks on two lines

Question

I encountered a problem with the bootstrap navbar.

I Made menu using the navbar-static-top - at first it was all good. When menu was expanded and few items added, and no

Answer 1

I also wanted to use it through CSS without redownloading and customizing Bootstrap, Skelly answer is working fine on Bootstrap 3 but in my case Bootstrap 3.2 the CSS changed a litte... Here is an updated version of all CSS required

    @media (max-width:992px){
    .navbar-header {
        float: none;
    }
    .navbar-left,.navbar-right {
        float: none !important;
    }
    .navbar-toggle {
        display: block;
    }
    .navbar-collapse {
        border-top: 1px solid transparent;
        box-shadow: inset 0 1px 0 rgba(255,255,255,0.1);
    }
    .navbar-fixed-top {
        top: 0;
        border-width: 0 0 1px;
     }
    .navbar-collapse.collapse {
        display: none!important;
    }
    .navbar-nav {
        float: none!important;
        margin-top: 7.5px;
     }
     .navbar-nav>li {
        float: none;
    }
    .navbar-nav>li>a {
        padding-top: 10px;
        padding-bottom: 10px;
    }
    .collapse.in{
        display:block !important;
    } 
}

Answer 2

You can have it collapse sooner using a CSS media query. The default breakpoint is 768px. Here we change it to 990 pixels so that it collapses before the 2-line wrapping starts..

@media (max-width: 990px) {
    .navbar-header {
        float: none;
    }
    .navbar-toggle {
        display: block;
    }
    .navbar-collapse {
        border-top: 1px solid transparent;
        box-shadow: inset 0 1px 0 rgba(255,255,255,0.1);
    }
    .navbar-collapse.collapse {
        display: none!important;
    }
    .navbar-nav {
        float: none!important;
        margin: 7.5px -15px;
    }
    .navbar-nav>li {
        float: none;
    }
    .navbar-nav>li>a {
        padding-top: 10px;
        padding-bottom: 10px;
    }
}

Demo: http://www.bootply.com/119436