textarea {
     -webkit-box-sizing: border-box; /* Safari/Chrome, other WebKit */
     -moz-box-sizing: border-box;    /* Firefox, other Gecko */
     box-sizing: border-box;         /* Opera/IE 8+ */
}

#container {
width:90%;
height: 66%;
position:relative;
margin: auto;
}

#left-div {
width:50%;
height:100%;
#position:relative;
margin: auto;
float:left;
}

#right-div {
width:48%;
height:100%;
position:relative;
margin: auto;
float:right;
}

#editor {
float:none;
width:50%;
height:100%;
}

#controls {
width:10%;
float:none;
}

#console {
width:100%;
height:100%;
float:none;
}