将ext-patch.css引用到ext-all.css后面,如果应用了ext其他的css,应该把ext-patch.css放在最后:

.x-window-footer {
	position: relative;
	top: 0;
	right: 0;
}

.x-tab-strip SPAN.x-tab-strip-text {
	font-size: 12px;
}

.x-panel-header {
	font-size: 12px;
}

.x-tree-node {
	font-size: 12px;
}

.x-grid3-hd-row TD {
	font-size: 12px;
}

.x-grid3-row TD {
	font-size: 12px;
	LINE-HEIGHT: 16px;
}

.x-tip .x-tip-bd {
	font-size: 12px;
}

.x-tip h3 {
	font-size: 12px;
}

.x-tip .x-tip-bd-inner {
	font-size: 12px;
}

.x-panel-tl .x-panel-header {
	FONT: normal 12px tahoma, arial, verdana, sans-serif;
}

.x-form-field {
	FONT: 12px tahoma, arial, helvetica, sans-serif
}

.x-small-editor .x-form-field {
	FONT: 12px tahoma, arial, helvetica, sans-serif
}

.x-combo-list-item {
	FONT: 12px tahoma, arial, helvetica, sans-serif;
}

.x-menu-list-item {
	FONT: 12px tahoma, arial, sans-serif;
}

.x-window-tl .x-window-header {
	FONT: bold 12px tahoma, arial, verdana, sans-serif;
}

.x-layout-split-west .x-layout-mini {
	BACKGROUND-IMAGE: url(../images/mini-left.jpg);
}

.ext-ie .x-form-text {
	margin-top: 1px;
}  /* the textField missing bottom line */
.x-form-item {
	FONT: 12px tahoma, arial, helvetica, sans-serif
}

.x-grid-group-hd DIV {
	FONT: bold 12px tahoma, arial, helvetica, sans-serif;
}

.
.x-btn-text-icon .x-btn-center .x-btn-text {ext-all .css (line 227)
	background-position:0pt2px;
	background-repeat: no-repeat;
	padding: 3px 0pt 2px 18px;
}

.ext-gecko .x-btn button {ext-all .css (line 222) padding-left:0pt;
	padding-right: 0pt;
}

.x-btn button {
	font-size: 12px;
}

.x-toolbar td,.x-toolbar span,.x-toolbar input,.x-toolbar div,.x-toolbar select,.x-toolbar label
	{
	font-size: 12px;
}