html - Div height and width not being set in javascript - Stack Overflow

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I am trying to set the width and height of a div in javascript but it is not being set. I have tried a lot but nothing is working. Here is what i have tried,

<div id="d1">asdasd</div>

<script>
  var d = document.getElementById("d1");
  d.style.width = "100px";
  d.style.height = "100px";
  d.style.cssText = 'border:1px solid black;'
</script>

I am trying to set the width and height of a div in javascript but it is not being set. I have tried a lot but nothing is working. Here is what i have tried,

<div id="d1">asdasd</div>

<script>
  var d = document.getElementById("d1");
  d.style.width = "100px";
  d.style.height = "100px";
  d.style.cssText = 'border:1px solid black;'
</script>

Please check what is the problem!

• javascript
• html
• css

Share Improve this question Follow edited Oct 29, 2021 at 21:29 Rifky Niyas 2,07611 gold badge1414 silver badges2929 bronze badges asked Nov 5, 2012 at 6:52 MJQMJQ 1,78666 gold badges3535 silver badges6161 bronze badges 3

• CAnt you fix directly in css? – Sowmya Commented Nov 5, 2012 at 6:53
• 1 No I have to do this in javascript. As i have to use values from js variables! – MJQ Commented Nov 5, 2012 at 6:54
• Have a look at this demo - it does what you need. – Dan Dascalescu Commented Nov 5, 2012 at 6:58

Add a ment  | 

9 Answers 9

Sorted by: Reset to default 6

I think d.style.cssText overwrites width and height properties

Try this:

var d = document.getElementById("d1");
d.style.width = "100px";
d.style.height = "100px";
d.style.cssText += 'border:1px solid black;'

As karaxuna mentioned, your d.style.cssText is overwriting the width and height settings. Simply changing your code to either this:

var d = document.getElementById("d1");
d.style.width = "100px";
d.style.height = "100px";
d.style.border = '1px solid black';

or this:

var d = document.getElementById("d1");
d.style.cssText = 'border:1px solid black;'
d.style.width = "100px";
d.style.height = "100px";

works perfectly.

Your problem is with d.style.cssText = 'border:1px solid black;' . it is overriding the width and height set by JS .

Check this fiddle:-

http://jsfiddle/RZKnQ/1/

This works:

<div id="d1" style="border:1px solid black;">asdasd</div>​
<script>
var d = document.getElementById("d1");
d.style.height = "200px";
</script>

http://jsfiddle/dandv/emnMb/4/

An alternate would be to define a new style element in CSS and simply set d.className to that CSS element.

I guess

d.style.cssText 

is problem

Change sequence of your JS statements it will work i.e.

<script>
    var d = document.getElementById("d1");
    d.style.cssText = 'border:1px solid black;'
    d.style.width = "100px";
    d.style.height = "100px";
</script>

Better put width, height properties in style attribute only. i.e.

d.style.cssText = 'border:1px solid black; width:100px; height:100px'

or in CSS class

d.style.cssText = 'border:1px solid black;'
d.style.float="left";
d.style.width = "100px";
d.style.height = "100px";​

You neeed to use float:left attribute.

I don't know what your problem is but I've used this and this worked

    function fnc1()
{
    document.getElementById("d1").style.width="100px";
    document.getElementById("d1").style.height="100px";
    document.getElementById("d1").style.backgroundColor="red";
}

HTML:

<div id="d1">asdasd</div>​

Javascript

document.getElementById('d1').style.height = 90+'px';​

working demo here ( works fine with chrome, din't check with other browsers )

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