javascript - How to make child div occupy full space of parent's div in a resizable bootstrap panel? -


i have resizable bootstrap panel (using jquery ui resizable plugin); trying have <div> within panel-body div, occupy space, eg. have div occupying panel body full space resized.

i thought enough define css rules, setting height: 100%; , width: 100% doesn't work (why ? new css , sadly can't understand why fails). ended using alsoresize make sure div resized @ same time parent, doesn't give satisfactory results.

i tried other magic without success ; don't magic, anyway ;)

for tests put background color yellow ; surprisingly, before first resize <div> doesn't show !

any , bit of explanations appreciated.

css:

.dashboard_panel {     min-height: 200px; } .panel-body {     min-height:200px;     height:100%; } .mydiv {     background-color:yellow;     width: 100%;     height: 100%; }

html:

<div class="container-fluid">     <div class="row-fluid">         <div class="col-md-12">             <div class="panel panel-info dashboard_panel">                 <div class="panel-heading">id23/emotion/m0</div>                 <div class="panel-body">                     <div class="mydiv"></div>                 </div>             </div>         </div>     </div> </div>

js:

$(".dashboard_panel").resizable({     alsoresize: ".mydiv, .panel-body" });

and link jsfiddle

i'm not sure if looking adding might help:

.panel-body {     position: relative;     min-height:200px;     height:100%; }  .mydiv {     position: absolute;     background-color:yellow;     top: 0;     bottom: 0;     left: 0;     right: 0; }

updated fiddle


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