html - Div loses height in angular app - background cover stops working -

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i had simple html app used background cover image. following code worked fine. 

body{     width: 100%;     height: 100%;     margin: 0 0;     padding: 0 0; }  .mainbody{     width:100%;     height: 100%;     background: url("/images/background.jpg") no-repeat fixed center;     background-size: cover;     margin: 0 0;     padding: 0 0; }

however, when created simple angular app w/bootstrap , used same code, mainbody div lost height component , image fails show.

the html simple , straightforward:

index.html

<body ng-app="testapp"> <div ui-view=""></div>

root.html

<div class="mainbody">    <div class="navtitle">     <span class="title">recordings</span>   </div>    <div class="navmenu">     <!-- <span class="fa fa-twitter menu twitter"></span> -->     <span class="menu">about</span>     <span class="menu">podcasts</span>     <span class="menu">support</span>   </div>    </div>

the same root.html works in simple html file. , i've debugged angular app see if there additional css being added body , mainbody , have not found any. appreciated!

you have not mentioned order of adding own style-sheet in html. if have added bootstrap file below custom css file problem may occurred due over-right issue of css. first add bootstrap file , add custom css. if have done please provide html div.


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