How do people typically style the output of the Twitter Bootstrap collapsible navigation?
The standard structure is as follows.
<div class="navbar navbar-inverse navbar-fixed-top">
<div class="navbar-inner">
<div class="container">
<button data-target=".nav-collapse" data-toggle="collapse" class="btn btn-navbar" type="button">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
Project name
<div class="nav-collapse collapse">
<ul class="nav">
<li class="active">Home</li>
<li>About</li>
<li>Contact</li>
</ul>
</div><!--/.nav-collapse -->
</div>
</div>
</div>
For example, if I would like to style .nav li a, I can do so with that CSS selector, but that also then changes the styling of the mobile navigation. Bootstrap doesn't appear to add any useful combination of classes to denote different ones.
<div class="nav-collapse collapse"> <!-- Closed by button -->
<div class="nav-collapse on collapse"> <!-- Open by button -->
<div class="nav-collapse on collapse"> <!-- Closed by resizing window to > mobile -->
I find myself having to effectively implement the bootstrap styles again for the mobile version because I can't seem to find a combination of classes which allows me to style just the main nav rather than the dropdown. For example, the dropdown can be styled with .nav-collapse.on
This is probably a really simple thing to do but can't seem to work it out!
I have delt with this issue myself and there are range of solutions.
In order I would put them something like:
Involved but worth it - I have switched to a workflow that involves building bootstrap. I'm using bootsrap-sass with compass and grunt etc. This handles the task of minifying, concatenating etc, and in this case all the changes you want to the _variables.scss or .less etc..
Cheap But Effective - I have used a very simple hack to just make a second menu and add .hidden-phone, .visible-desktop etc.. This allows you to also make unique touch buttons and maybe forgo collapse. Kinda like they do here (It's not bootstrap but its the same concept)
Media Queries - My last css in the list is always my responsive.scss or a file full of media queries, this way I can change whatever I want to override from anything done before for whichever device.
Simplest solution would be to wrap the .navbar div for your main nav in a div with a custom class -- like, say, "mainnav". Then you can write styles to things like ".mainnav .nav li a".
If you can touch the bootstrap structure itself, you could skip the wrapper div and simply add the class "mainnav" to the "navbar" div, and then write styles like ".mainnav.navbar .nav li a".
The menu is broken into two parts, a structure and a styling. If you remove the styling you are left with a naked bootstrap menu that is easy to style. Remove the "navbar-inner" call and it will strip out all the styling for you. I just rename the call on the menu div from navbar-innner to navbar-inner_OFF. That shuts off the -inner css and also reminds me I rurned it off when I look at the menu code.
Related
What is the best practice if a modifier effects all elements of a block?
In my current project I have a header. This header changes to position: fixed if the user scrolls.
In the header there's the main navigation, the logo, a language switcher and a phone link:
<header class="header">
<div class="header__logo">...</div>
<nav class="nav nav_main">...</nav>
<nav class="nav nav_lang-switch">...</nav>
<div class="header__phone-link"></div>
</header>
On scrolling, the header get's the modifier header_fixed:
<header class="header header_fixed">
<div class="header__logo">...</div>
<nav class="nav nav_main">...</nav>
<nav class="nav nav_lang-switch">...</nav>
<div class="header__phone-link"></div>
</header>
The header looks completely different if it's fixed: the color changes, the main navigation turns to a hamburger icon navigation, the icons of the lang switch become smaller and so on.
Now I could go the nested way in CSS:
.header_fixed .nav_main {...}
.header_fixed .lang-switch__icon {...}
.header_fixed .header__phone-link {...}
...
Or every block or element that changed can get it's own modifier class.
What are your thoughts about that?
Regards,
Marcus
Nesting is just fine here, see https://en.bem.info/methodology/css/#nested-selectors
I am trying bootstrap 3
here is the code
<body>
<div class="container">
<div class="list-group">
All inbox <span class="badge">1099</span>
<div class="list-group-item">
Unread <span class="badge">100</span>
<br>
Today <span class="badge">10</span>
<br>
This week <span class="badge">23</span>
<br>
This month <span class="badge">67</span>
</div>
Bookmarked <span class="badge">3</span>
Deleted <span class="badge">10</span>
</div>
</div>
<!-- scripts here -->
<script src="js/jquery.min.js"></script>
<script src="js/bootstrap.min.js"></script>
the result is
how do I get the numbers of links Unread, Today, This week, This month align to the right like the rest? Unread should be heading item and Today, This week, This month need to be subitems.
without using custom css file?
CSS would be a simpler solution. But if you can't use CSS, you must change your HTML. The key is to take advantage of the existing Bootstrap CSS rule that makes the badges float to the right on All Inbox, Bookmarked, and Deleted:
.list-group-item > .badge {
float: right;
}
This means elements with the class badge must be directly inside an element with the class list-group-item- not nested inside another element, like you have it now.
This might change your layout, though. If you want to keep your layout as-is, add the class pull-right to each span with the class badge. This will make the badges float to the right.
I'm experimenting with Bootstrap 3.2. I'm trying to create a fixed at top navigation bar but I'm running into two problems:
The navigation bar overlaps the content below it.
The navigation bar seems to be going far off the screen to the right. This makes my button in the navigation bar not visible unless the window width is dragged to a smaller size.
For the first problem, I've followed the Bootstrap example tip by adding a class to my css file, including this file below the Bootstrap css file in the html document, and then referring to the class.
.navbar-height{
body{padding-top: 200px;}
}
<body class="navbar-height">
Though, this seems to do nothing (as you can see I specified the number really high hoping to see a dramatic change, which did not occur).
Here's my the navigation bar:
<header id="header-navigation">
<div id="nav-bar-container">
<nav id="nav-bar" class="navbar navbar-default navbar-fixed-top" role="navigation">
<div id="nav-item-container" class="container-fluid">
<div id="drop-down" class="navbar-header">
<button type="button" class="btn btn-default navbar-btn navbar-toggle collapsed" data-toggle="collapse" data-target="#user-dropdown">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<div id="home-button" class="navbar-left">
<a class="navbar-brand" href="#"><img alt="Brand" src=""></img></a>
</div>
</div>
<div id="user-dropdown" class="navbar-collapse collapse">
<ul class="dropdown-menu" id="dropdown-items" role="menu">
<li>
<div class="list-group-item">
<div class="row-picture">
<img class="circle" src="" alt="icon"></img>
</div>
<div class="row-content">
<h4 class="list-group-item-heading">Placeholder</h4>
<p class="list-group-item-text">Placeholder</p>
</div>
<div class="list-group-seperator"></div>
</div>
</li>
<li><span class="glyphicon glyphicon-log-out"></span></li>
</ul>
</div>
</div>
</nav>
</div>
</header>
As a quick break down of the above code, I have a <header> tag which will hold the navigation bar. Within this <header>, I have a containing <div> (id="nav-bar-container") which only purpose is to act as a container for the navigation bar (maybe I'll add something else to the header and want to keep the bar seperate). Then, I have the actual <nav> which has the appropriate classes (or so I think): "navbar navbar-default navbar-fixed-top". The next <div> (id="nav-item-container") holds the components of the navigation bar. The following <div> (id="drop-down") contains the button (which seems to disappear at full-screen) and a link with a "brand", which always seems to be visible. The last major <div> contains the "drop down" content for when the button is pressed.
My Question: why is my navigation bar overlapping the content below it and over extending to the right hiding the button?
Ok, first thing, you don't need the <header> tag, so feel free to remove that.
Second, from the Docs on navbar-fixed-top, you need to have padding:
body { padding-top: 70px; }
Notice you applied it to the heading style; that won't work. Apply it to the body and it works fine.
As far as the 2nd issue, I don't actually see any horizontal scrolling when I removed the
<header> tag, so I think that may have been causing an issue.
Checkout this Bootply example:
Bootply Example
To see what I mean. It's your code with the tag removed. Hope that helps!
Change..
.navbar-height{
body{padding-top: 200px;}
}
to..
body.navbar-height{
padding-top: 200px;
}
You want the padding on the body itself. This will push you body down 200px giving you a gutter at the top for your fixed navbar.
most likely you'd want to adjust this padding depending on the actual height of your navbar.
As for problem number two, where I believed the navigation bar to be overflowing off the screen to the right, was just a mistake in the layout of the code. I was grouping the button I wanted to display on the right with the brand in the "navbar-header". What this does is display the brand but use that button only on a mobile screen to hide or show its associated dropdown. That is why I was only seeing the button when I made the width smaller by dragging the window. To fix this problem I removed the button and placed it within the appropriate code block. So, my "navbar-header" now looks like this:
<div id="drop-down" class="navbar-header">
<div id="home-button" class="navbar-left">
<a class="navbar-brand" href="#"><img alt="Brand" src=""></img></a>
</div>
</div>
Now, next within the id="nav-item-container" parent div, I create a list of items (ul). This list contains the items within the navigation bar and has the classes "nav navbar-nav navbar-right". Each list item (li) within this list is an item within the navigation bar. Dropdown buttons and their contents must be contained within the same list item (li). Make sure the parenting list item to the dropdown elements contains the class "dropdown". Then, the button or link should have the "dropdown-toggle" class applied to it. And the dropdown items themselves (which too can be a list of items and often is) should have the class "dropdown-menu". For example:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css" rel="stylesheet"/>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<ul class="nav navbar-nav navbar-right">
<li class="dropdown">
<a class="dropdown-toggle" data-toggle="dropdown" href="#">
<span class="glyphicon glyphicon-align-justify"></span>
</a>
<ul class="dropdown-menu" id="dropdown-items" role="menu">
<li>
<div class="list-group-item">
<div class="row-picture">
<img class="circle" src="" alt="icon"></img>
</div>
<div class="row-content">
<h4 class="list-group-item-heading">Placeholder</h4>
<p class="list-group-item-text">Placeholder</p>
</div>
<div class="list-group-seperator"></div>
</div>
</li>
<li><span class="glyphicon glyphicon-log-out"></span></li>
</ul>
</li>
</ul>
Note, in the snippet I didn't include the parenting nav, div, or header so it may not work exactly how it should. Also, I figured the majority of this out on my own by referencing the Bootstrap component page, as well as, the Bootstrap material design page (a plugin to Bootstrap that gives everything the Google Material Design look and feel). So, I'm not sure if all the "rules" I stated are mandatory or if there are other ways to achieve this.
As for problem number one, I just made a silly mistake with the css and the two other answers provided correct ways of fixing it. All I had to do was fix the body css like so:
body{
padding-top: 200px;
}
My webpage includes some code via php include.
This included code contains several buttons that open dropdown menus.
I'm using bootstrap, so styling for class .dropdown-menu from bootstrap's css apply by default to these dropdown menus.
I'd like to change the width of a particular dropdown menu (resize to 100px).
<!-- Sizes dropdown -->
<div class="btn-group women" id="women_sizes">
<button type="button" class="btn btn-pale dropdown-toggle" data-toggle="dropdown">
size
<!-- <span class="caret"></span> -->
</button>
<ul class="dropdown-menu" role="menu">
...
</ul>
</div><!-- end #women_sizes -->
I've tried the following css code, and I don't know why it doesn't work. I've tried putting this code in a tag in the page's header and in a linked external css file, which I include after bootstrap's css.
#women-sizes .dropdown-menu {
min-width:100px;
width:100px;
}
What am I getting wrong?
Here you are using an underscore women_sizes as a separator in the HTML...
<div class="btn-group women" id="women_sizes">
Here you are using a dash #women-sizes in the CSS.
#women-sizes .dropdown-menu {
Pick one method and stick with it. Bootstrap uses dashes, so I would go with that.
I am using bootstrap 3 on a Rails 4 app.
I have a "normal" fixed navbar on the page headers. For the moment, when the viewport decreases (small device), all menu titles disappear and go into the "three bars" icon like here: http://getbootstrap.com/examples/navbar-fixed-top/ (try on a small screen/viewport).
Is it possible with bootstrap 3 to NOT make all menu titles go into this three bar icon, but to replace all texts by very small icons (for example Help would be replaced by a " ? "icon) so that there is enough space for all of them, when the viewport is very small.
Is there something already built-in inside Bootstrap allowing to do that ? or maybe some external libraries that play well with BS3?
thanks
That should not be to hard, and no need for a framework. You can use the responsive utility classes provided by BS3. With those, you can hide the icons on big screen and show the labels, and the opposite when on small screen. Your navbar markup would look something like this:
<nav class="navbar navbar-default" role="navigation">
<div class="container-fluid">
<ul class="nav navbar-nav">
<li class="active"><a href="#">
<i class='glyphicon glyphicon-user visible-xs-inline-block'></i>
<span class='hidden-xs'>Link</span>
</a></li>
<li><a href="#">
<i class='glyphicon glyphicon-user visible-xs-inline-block'></i>
<span class='hidden-xs'>Link</span>
</a></li>
</ul>
</div>
</nav>
And a small line of css is required to prevent the li from being displayed as block on small screens. Something like this should do the trick:
.nav>li {
display: inline-block;
}
And an example to demonstrate: http://www.bootply.com/a17IsJ0Pop