- Building a Navbar 9:17
- Using Jumbotron to Showcase Key Content 2:48
- Buttons and Button Groups 5:22
- Inline Navs and Dropdown Buttons 5:09
- Displaying Content with Cards 7:32
- Building the Schedule with a List Group 6:26
- Displaying a Modal Window 5:02
- Using ScrollSpy to Highlight Nav Links 4:22
- Bootstrap Components Review 6 questions
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Building a Navbar
9:17Bootstrap simplifies many complex or time-consuming tasks like building navigations, from controls, drop-down menus and more. In this video, we'll continue building the Full Stack Conf site using Bootstrap's UI components, starting with the navbar.
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Bootstrap simplifies many complex or time
consuming tasks like building navigation
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systems, form controls,
drop down menus, and more.
0:09
For example, interactive
components like drop down, alert,
0:12
and modal windows require
JavaScript to work.
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But Bootstrap lets you quickly
create an interactive component
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by simply giving an element a class,
ID, or data attribute.
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You don't have to write any JavaScript,
because Bootstrap already provides it.
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In the last section of this course,
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you saw how Bootstrap greatly
simplifies page layout.
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CSS layout can be tricky, and
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creating your own CSS grid
system is time consuming.
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So Bootstrap's predefined classes and grid
let you focus on the higher level parts of
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your project,
instead of worrying about small,
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repetitive tests like calculating column
widths, loads, and writing media queries.
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Bootstrap components let us create
interactive components just as easily.
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So coming up in this section,
we'll press on and build out the rest of
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the Full Stack Conf site using
some of Bootstrap's UI components.
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So let's start with a nav bar.
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Click the Components link to view
all the available components.
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Now a good way to start using any of these
components is to copy their code snippets
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from the Bootstrap docs,
paste them into your project,
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then make changes to the HTML and
CSS to customize the components.
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So as you're building the site, feel free
to experiment with other components to
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explore the capabilities of Bootstrap.
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There's one key component missing
from our website, the navigation.
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So let's quickly build a navigation
that looks like the one in the mock-up.
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Back in index.html,
below the opening body tag,
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I'll write a set of HTML comments for
my navbar.
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I want the navigation to stretch from
edge to edge of the browser window.
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So I'll create the navbar outside of the
container, that way the navigation isn't
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constrained by the position and
width of the container div.
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So Bootstrap comes with lots of easily
customizable navigation components,
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that are built using Flexbox.
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For instance, you can quickly add
a basic navigation to your site,
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using the base nav component snippet.
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So I'll copy this snippet, and
paste it between my navbar comments
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Then you have the option to align
the nav horizontally or vertically.
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Or you can quickly generate
a tabbed navigation by simply
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adding the class nav-tabs
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You can even display pill shaped
navigation links, like this,
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using the class nav-pills.
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Now the website mock-up shows that we
should create a navigation bar containing
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the navigation links on the left side, and
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a link to the organizer's
website on the right side.
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Bootstrap has the perfect component for
this, Navbar.
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Navbar is a wrapper for
positioning navigation, branding, and
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other elements into a navigation header.
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As you can see, you can even include
a search field in the navbar.
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So I'm going to use this nav snippet,
which is similar to the regular nav we
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have now, except you can use
different color schemes and
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it's easier to position
the navigation menu.
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It even collapses the navigation in the
extra small to medium breakpoint range,
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and displays a navbar-toggle
icon to open the nav menu.
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So I'll use one of these nav snippets
provided here to build my navbar.
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And the first one uses an unordered
list to lay out the nav links.
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And the second snippet works and
looks exactly the same way, except that it
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doesn't use a list based approach, instead
it uses a div with nested anchor elements.
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So I'll copy this second snippet and
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replace the nav component
that's in the HTML file.
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Next I'll change the links to
match the content in our site.
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So for the home link,
I'll make the href attribute #home,
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then I'll replace Features with About and
set its href to #about.
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Below that we'll set
this link to Speakers.
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And the final link will be
the link to the Schedule.
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And we don't need the active and
disabled classes.
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So let's remove the active
class from the Home link and
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the disabled class from the Schedule link.
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So let's have a look.
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If you resize the browser,
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you'll see that the navbar provides
proper responsive styling out of the box.
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So in the medium breakpoint range,
the navigation links collapse and we're
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presented with the toggle menu, which you
can click to show and hide the nav links.
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Bootstrap provides the class
navbar-brand as a class you can use for
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your company, product, or project name.
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So I'll update the navbar-brand's href
attribute with the link to Treehouse.
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You can copy these exact snippets from
the teacher's notes of this video.
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And I'll change the text
to Presented by Treehouse.
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Let’s also add target_blank so
the link opens in a new tab or window.
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So now I want to display the Presented
by Treehouse link to the right of
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the navigation links so that it’s
flush with the right edge of the nav.
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Well, since the nav uses Flexbox,
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I can take advantage of the order classes
to control the visual order of the link.
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So giving the navbar-brand
link the class order-1,
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shifts the links to the right
of the navigation links.
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The default navbar's text color is gray,
against a light gray background, but
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I'd like a brighter background color.
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Well, changing the colors in the navbar is
easy with the navbar theming classes and
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background color utilities.
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I like the white navigation links against
the dark blue background shown here.
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So to apply this color
scheme to my Navbar,
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I'll copy the navbar-dark and
bg-primary classes from the snippet and
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replace navbar-light and
bg-light with these new classes.
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And that looks a lot better.
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So now the content inside the navbar
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should be aligned with
the rest of the page.
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Meaning, the content's left and right
margins should line up with the left and
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right margins of the container below
as we see here in the mock-up.
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Well, the container's
width is constrained and
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doesn't stretch to fill
the full width of the page.
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Again, because I want the navbar component
to stretch across the entire width
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of the browser window,
I placed it outside the container.
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So to align the Navigation menu and
Treehouse link with the rest of the page,
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I can simply wrap the Navbar
content in a container.
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So back in my code,
right below the opening nav tag,
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I'll add a div with a class container and
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place the closing div tag just
above the closing nav tag.
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And now our navigation links
are centered on the page, good.
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Next to make the Presented
by Treehouse link perfectly
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flush with the right edge of the navbar,
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I'll use the merge in utility class mr-0,
or margin right 0,
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to remove its right margin and
that looks better.
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Finally, let's make this a fixed navbar,
so
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users never lose sight of the navigation.
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It will always stay at
the top of the page.
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Well, Bootstrap makes it easy
to fix a navbar to the top or
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bottom of the viewport.
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For example, you can give the navbar
component the class fixed-top.
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And it will stick to
the top of the browser.
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So now when I scroll down the page,
the navbar remains fixed in one spot.
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Now if you notice that the fixed
positioning of the navbar covers up parts
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of the headings, don't worry.
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We'll fix this in the next video.
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