Navbars are responsive meta components that serve as navigation headers for your application or site. They begin collapsed (and are toggleable) in mobile views and become horizontal as the available viewport width increases.
Modify the look of the navbar by adding .navbar-inverse.
Replace the navbar brand with your own image by swapping the text for an <img>. Since the .navbar-brand has its own padding and height, you may need to override some CSS depending on your image.
Place form content within .navbar-form for proper vertical alignment and collapsed behavior in narrow viewports. Use the alignment options to decide where it resides within the navbar content. As a heads up, .navbar-form shares much of its code with .form-inline via mixin. Some form controls, like input groups, may require fixed widths to be show up properly within a navbar.
Add the .navbar-btn class to <button> elements not residing in a <form> to vertically center them in the navbar.
Wrap strings of text in an element with .navbar-text, usually on a <p> tag for proper leading and color.
For folks using standard links that are not within the regular navbar navigation component, use the .navbar-link class to add the proper colors for the default and inverse navbar options.
Align nav links, forms, buttons, or text, using the .navbar-left or .navbar-right utility classes. Both classes will add a CSS float in the specified direction. For example, to align nav links, put them in a separate <ul> with the respective utility class applied.
These classes are mixin-ed versions of .pull-left and .pull-right, but they're scoped to media queries for easier handling of navbar components across device sizes.
Fixed to Top
Add .navbar-fixed-top and include a .container or .container-fluid to center and pad navbar content.
Add .navbar-fixed-bottom and include a .container or .container-fluid to center and pad navbar content.
Create a full-width navbar that scrolls away with the page by adding .navbar-static-top and include a .container or .container-fluid to center and pad navbar content.