.problem{
	width: 1000px;
	max-width: 100%;
	margin: 0 auto;
	display:block;
	vertical-align: top;
	padding-bottom: 30px;
}

.problem-list{
	width: 800px;
	max-width: 100%;
	margin: 0 auto;
	padding-bottom: 10px;
	border-bottom: 2px solid #000;
	letter-spacing: 3px;
	margin-bottom: 20px;
}

.problem-title{

	display: block;
	border-bottom: 2px solid #000;
	letter-spacing: 3px;
    padding: 10px 60px;
    padding-right: 0;
	box-sizing: border-box;
	position: relative;

}
.problem-title h3{
	padding-top: 7px;
	font-size: 30px;
	cursor: pointer;

}
.problem-title:before{
	content: '';
	width: 50px;
	height: 50px;
	background-image: url('../img/q&a/icon-arrow.png');
	background-repeat: no-repeat;
	background-position: center;
	background-size: cover;
	max-width: 100%;
	margin: 0 auto;
	display: inline-block;
	vertical-align: top;
	margin-right: 5px;
	position: absolute;
	left: 0;

}
.problem-title h3 span{
	display: inline-block;
	vertical-align: middle;
}
.problem-title p{
	font-size: 18px;
	padding: 10px 0;
	line-height: 1.6;
	display: none;
}

.problem-icon:before{
	content: '';
	background-image: url('../img/q&a/icon-down.png');
}