div.ban_img {
	height: 320px;
	background: url(../img/support.jpg) no-repeat center center;
	background-size: auto 100%;
}

section.mainContain {
	padding-top: 50px;
}

div.product-item {
	margin-bottom: 35px;
	padding: 30px;
	height: 320px;
	border: 1px solid #c1c1c1;
	background-color: #f1f5f8;
	text-align: center;
}

h3.product-title {
	margin: 50px 0 30px;
}

.download-button {
	display: block;
	margin-top: 55px;
	padding-top: 20px;
}

.download-button:before {
	position: relative;
	right: .7rem;
	display: inline-block;
	content: "\e025";
	font-family: 'Glyphicons Halflings';
}

div.product-item>a:hover {
	cursor: pointer;
}

h5.page-header {
	margin: 0 95px 20px;
	border-bottom: 1px solid #8a8f89;
}

h2.common-problem.text-center {
	margin: 25px;
	font-size: 22px;
}

@media only screen and (max-width:767px) {
	ul.problem li {
		float: left;
		margin-bottom: 10px;
		margin-left: 25px;
		width: calc(100% - 20px);
	}
}

@media (min-width:900px) {
	ul.problem li {
		float: left;
		margin-bottom: 10px;
		margin-left: 25px;
		width: 520px;
	}
}

ul.problem li a {
	color: #000;
}

ul.problem li a:before {
	position: relative;
	right: 1rem;
	display: inline-block;
	color: #337ab7;
	content: "●";
}