Why is my bootstrap navbar not displaying inline?

Question

Here is my html using bootstrap (I\'m sure bootstrap is installed correctly)

Answer 1

I'm not saying the other answers are incorrect in any way, but all that is really needed to accomplish the original question is this entry in the subtheme's CSS file:

.nav.navbar-nav li {
    float: left;
}

It should be noted that the class(s) before the li will vary depending on selections in the Appearance section of the theme and other factors. For example, right out of the box the class would have been .menu.nav li