I'm using Ext JS 2.3.0 and have a bunch of fields contained within a FieldSet

I'd like to have them laid out side-by-side instead, ideally with the label on top of the field instead of to the left of it. The relevant code is:

    var kpiFilterCombo = new Ext.form.ComboBox({
        name: 'kpi',
        store: this.dashboardInst.servicesModel.getAvailableKPIsStore()
    });

    var kpiLower = new Ext.form.TextField({
        fieldLabel: "Lower",
        name: 'lowerBound'
    });

    var kpiUpper = new Ext.form.TextField({
        fieldLabel: "Higher",
        name: 'upperBound'
    });

    var kpiFilterFieldset = new Ext.form.FieldSet({
        title: locale['label.kpi.condition'],
        checkboxToggle: true,
        collapsed: true,
        autoHeight:true,
        items : [
            kpiLower,
            kpiFilterCombo,
            kpiUpper,
        ]
    });