how to set dynamically height to element?

Question

I am trying to set dynamically height to element in my demo .I will tell you issue I am taking static or constant value of height in my demo .I take 250px constant value

 #wrapper{
    background-image: url(https://dl.dropboxusercontent.com/s/nz1fzunlqzzz7uo/login_bg.png?dl=0);
    min-height: 250px;
    background-repeat: no-repeat; 
}

But I need to add this height dynamically .I got height from this

$scope.hgt =$window.innerHeight/3;
alert($scope.hgt)

But I need to set $scope.hgt to min-height to #wrapper div dynamically?.I don't want to take static value of div height .I want to add dynamically .

here is my code http://codepen.io/anon/pen/bdgawo

same thing i need to in angular what we do in jquery

$('#wrapper').css('height': $window.innerHeight / 3)

Answer 1

You could simply achieve this by own directive which will add css dynamically

Markup

<div id="wrapper" set-height>
  <h4 class="headerTitle">tell Mother name</h4>
</div>

Directive

.directive('setHeight', function($window){
  return{
    link: function(scope, element, attrs){
        element.css('height', $window.innerHeight/3 + 'px');
        //element.height($window.innerHeight/3);
    }
  }
})

The better solution would be you could use ng-style directive that expects the values in JSON format.

<div id="wrapper" ng-style="{height: hgt+ 'px'}">
  <h4 class="headerTitle">tell Mother name</h4>
</div>

Working Codepen

Answer 2

The following should work. Putting it in the codepen snippet won't show as the window size is small so it draws height from the min-height attribute. Test it out on a bigger window.

<div id="wrapper" style="height: {{ hgt }}px" >
    <h4 class="headerTitle">tell Mother name</h4>
<div>