Make Div Max-Height Equal to 'Window Height - 100Px'

Make DIV max-height equal to `window height - 100px`

Yes:

#specificElement {
    height: calc(100vh - 100px);
    box-sizing: border-box;
}

This uses the CSS calc() function to subtract 100px from 100vh (1vh being one percent of the view-port's height) and uses the result as the value of the height property.

The box-sizing forces the browser to include padding, and borders, in the calculated height of the element.

Obviously use a relevant selector for your use-case.

References:

• calc().
• CSS lengths.

How to make a div max height equal to the screen height?

Complete solution by my friend:
http://jsfiddle.net/yanhaifa/zhrmxd23/28/

html, body {
  height:100%;
  margin:0;
}
.ss, .scroll, .footer {
  box-sizing: border-box;
}

.ss {
  display:flex;
  flex-direction: column;
  max-height: 100%;
  border: 1px solid #ddd;
}

.header {
  flex: 0 0 auto;
}

.scroll{
  flex: 1 1 auto;
  position: relative;
  overflow-y: auto; /* add overflow on y-axis so it add the scroll bar */
}
.footer {
  flex: 0 0 auto;
  margin:0;
  border: 1px solid orange;
  padding:10px;
}

How to specify max-height css property to Screen size

Scroll bar appears only when content is overflown.

If max-height of your inner div is equal to the height of its container, scroll bar will never appear. if you want to see scroll bar use this.

.scrollDiv {
    height:auto;
    max-height:150%;
    overflow:auto;   
}

Make a div fill the height of the remaining screen space

2015 update: the flexbox approach

There are two other answers briefly mentioning flexbox; however, that was more than two years ago, and they don't provide any examples. The specification for flexbox has definitely settled now.

Note: Though CSS Flexible Boxes Layout specification is at the Candidate Recommendation stage, not all browsers have implemented it. WebKit implementation must be prefixed with -webkit-; Internet Explorer implements an old version of the spec, prefixed with -ms-; Opera 12.10 implements the latest version of the spec, unprefixed. See the compatibility table on each property for an up-to-date compatibility status.

(taken from https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Flexible_boxes)

All major browsers and IE11+ support Flexbox. For IE 10 or older, you can use the FlexieJS shim.

To check current support you can also see here:
http://caniuse.com/#feat=flexbox

Working example

With flexbox you can easily switch between any of your rows or columns either having fixed dimensions, content-sized dimensions or remaining-space dimensions. In my example I have set the header to snap to its content (as per the OPs question), I've added a footer to show how to add a fixed-height region and then set the content area to fill up the remaining space.

html,body {  height: 100%;  margin: 0;}
.box {  display: flex;  flex-flow: column;  height: 100%;}
.box .row {  border: 1px dotted grey;}
.box .row.header {  flex: 0 1 auto;  /* The above is shorthand for:  flex-grow: 0,  flex-shrink: 1,  flex-basis: auto  */}
.box .row.content {  flex: 1 1 auto;}
.box .row.footer {  flex: 0 1 40px;}

<!-- Obviously, you could use HTML5 tags like `header`, `footer` and `section` -->
<div class="box">  <div class="row header">    <p><b>header</b>      <br />      <br />(sized to content)</p>  </div>  <div class="row content">    <p>      <b>content</b>      (fills remaining space)    </p>  </div>  <div class="row footer">    <p><b>footer</b> (fixed height)</p>  </div></div>

Div height equal to another div max-height

Using Javascript, you could do something like:

document.getElementById("two").style.height = document.getElementById("one").clientHeight;

How to force child div to be 100% of parent div's height without specifying parent's height?

NOTE: This answer is applicable to legacy browsers without support for the Flexbox standard. For a modern approach, see: https://stackoverflow.com/a/23300532/1155721

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I suggest you take a look at Equal Height Columns with Cross-Browser CSS and No Hacks.

Basically, doing this with CSS in a browser compatible way is not trivial (but trivial with tables) so find yourself an appropriate pre-packaged solution.

Also, the answer varies on whether you want 100% height or equal height. Usually it's equal height. If it's 100% height the answer is slightly different.

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