window { 
 display: block;
 background-color: white; 
} 

tree { 
 display: table; 
 background-color: #FFFFFF; 
 border: 5px ridge; 
 border-spacing: 0px; 
 width: 75%;
} 

treeitem { 
 display: table-row; 
} 

treehead { 
 display: table-header-group; 
} 

treebody { 
 display: table-row-group; 
} 

treecol[id="migration"] {
 display: table-column;
 width: 25%;
}

treecol[id="username"] {
 display: table-column;
 width: 75%;
}

treecell { 
 display: table-cell;
 font-family: Verdana, Sans-Serif;
 font-size: 8pt;
 white-space: nowrap;
} 

treeitem[selected] {
 background-color: yellow;
}

//treecell[selectedcell] {
 //background-color: yellow;
//}
 
treehead treeitem treecell { 
 background-color: #00C0FF; 
 border: outset 1px;
 border-color: white #707070 #707070 white;
 vertical-align: middle;
}

//popup {
 //display: none;
//}