Ext.override(Ext.grid.GridView,{

getColumnStyle : function(colIndex, isHeader) {

var colModel = this.cm,

colConfig = colModel.config,

style = isHeader ? '' : colConfig[colIndex].css || '',

align = colConfig[colIndex].align;

if(Ext.isChrome){

style += String.format("width: {0};", parseInt(this.getColumnWidth(colIndex))-4+'px');

}else{

style += String.format("width: {0};", this.getColumnWidth(colIndex));

}

if (colModel.isHidden(colIndex)) {

style += 'display: none; ';

}

if (align) {

style += String.format("text-align: {0};", align);

}

return style;

}

});