1. extjs4 如何用样式去除textfield的边框
.x-form-field-my{
border:0;
border-bottom:1px solid #036;
}
{
xtype: 'textfield',
fieldLabel: '金额',
itemId: "sumMoney",
name: "sumMoney",
selectOnFocus: true,
value: '',
fieldCls: 'x-form-field-my'
}