.mainbg{
	background: url(../../image/qa/bg_img.gif) right top no-repeat ;
	background-size:40% auto;
}


.underline {
	text-decoration: underline;
}

.qabox {
	overflow: hidden;
	float: left;
	padding: 16px;
	border: dotted 1px #888888;
}
.qaicon {
	width: 30px;
}
.border-top {
	border-top: solid 1px #888888;
}