/* CSS Document */

ul,li {
	margin: 0;
	padding: 0;
	list-style: none;
}

/* link */
.content_banner {}
ul.link {
	display: block;
}
ul.content_banner li {
	float: left;
	box-sizing: border-box;
	width: 25%;
}
ul.content_banner li img {
	width: 158px;
	height: 60px;
	margin-bottom: 6px;
}

ul.content_banner li a:hover img {
  opacity: 0.7;
  filter: alpha(opacity=70);
  -ms-filter: "alpha(opacity=70)";
}

@media only screen and (max-width: 639px) {
	ul.content_banner li {
		float: none;
		width: 100%;
		display: block;
		text-align: center;
	}
}