????????????????????????????

var grid = new Ext.grid.GridPanel({
?....
tbar:[
{ xtype: 'label',text:'???,cls:'xxxx'}

??????cls?????????
?????HTML???????
<label id="ext-comp-1022" class=" xxxx">???</label>
????????xxxx"????1???????????????????

??????????????????????????

.xxxx{
font-size: 20px;
}

?????????????

???????????????????????????
???????????