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问题:

Using twitter bootstrap (2), I have a simple page with a nav bar, and inside the container I want to add a div with 100% height (to the bottom of the screen). My css-fu is rusty, and I can't work this out.

Simple HTML:

<body>
  <div class="navbar navbar-fixed-top">
   <!-- Rest of nav bar chopped from here -->
  </div>
  <div class="container fill">
    <div id="map"></div> <!-- This one wants to be 100% height -->
  </div>
</body>

Current CSS:

#map {
    width: 100%;
    height: 100%;
    min-height: 100%;
}

html, body {
    height: 100%;
}

.fill { 
    min-height: 100%;
}

EDIT *

I've added height to the fill class as suggested below. But, the problem is that I add a padding-top to the body to account for the fixed navbar at the top. This affects the 100% height of the "map" div and means that a scrollbar gets added - as seen here: http://jsfiddle.net/S3Gvf/2/ Can anyone tell me how to fix?

回答1:

Set the class .fill to height: 100%

.fill { 
    min-height: 100%;
    height: 100%;
}

JSFiddle

(I put a red background for #map so you can see it takes up 100% height)

回答2:

Update 2018

In Bootstrap 4, flexbox can be used to get a full height layout that fills the remaining space.

First of all, the container (parent) needs to be full height:

Option 1_ Add a class for min-height: 100%;. Remember that min-height will only work if the parent has a defined height:

html, body {
  height: 100%;
}

.min-100 {
    min-height: 100%;
}

https://www.codeply.com/go/dTaVyMah1U

Option 2_ Use vh units:

.vh-100 {
    min-height: 100vh;
}

https://www.codeply.com/go/kMahVdZyGj

Then, use flexbox direction column d-flex flex-column on the container, and flex-grow-1 on any child divs (ie: row) that you want to fill the remaining height.

Also see:
Bootstrap 4 Navbar and content fill height flexbox
Bootstrap - Fill fluid container between header and footer
Bootstrap 4: How to make the row stretch remaining height?