.problem {
	position:relative;
	margin-top:0;
	margin-bottom:0;
}
.problem,.answer {
	padding-bottom:15px;
}
.glyphicon-icon {
	position:absolute;
	top:0;
	right:0;
}
.answer {
	display:none;
}
.question,.answer {
	padding-left:5px;
	padding-right:15px;
}

/*add by vincent*/
.non-style {
    list-style-type: none;
	padding:0;
}

.xlarge-section-box {
    margin: 0px 5%;
}

.wrap-container {
    position: relative;
    min-width: 100%;
    margin: 0px;
}

.view-section {
    clear: both;
    width: 100%;
    min-height: 100px;
    position: static;
    vertical-align: baseline;
    margin-top: 0px;
}

.container {
    margin-top:0;
}