html,
body {
	margin: 0;
	padding: 0;
	width: 100%;
	min-height: 100%;
	color: #000;
	font-size: 20px;
	font-family: Meiryo,"Hiragino Kaku Gothic Pro";
}
header {
	width: 90%;
	height: 60px;
	margin: 0 auto;
	padding: 0;
}
#logo {
	float: left;
	width: 250px;
	height: 80px;
	margin: 0;
	padding: 0;
}
nav {
	float: right;
	width: 350px;
	height: 80px;
}
nav ul {
	list-style: none;
	width: 350px;
	height: 80px;
	margin-top: 30px;
}
nav ul li {
	float: left;
	height: 80px;
	padding: 0;
}
#title {
	clear: both;
	width: 100%;
	padding: 20px 0;
	text-align: center;
 	background: url('../images/background.png');
}
h1 {
	color: #fff;
	font-size: 60px;
}
#article,
#soft,
#main {
	width: 1280px;
	min-height: 50%;
	margin: 0 auto;
	padding: 50px 0;
	display: flex;
	gap: 0;
}
#center {
	width: 800px;
	margin: 0 auto;
}
#center ul,
#soft ul,
#main ul {
	list-style: none;
}
#main ul li {
	float: left;
	width: 530px;
	height: 180px;
	margin: 10px 30px 10px -10px;
	padding: 20px 30px;
	border: 1px #000 solid;
}
#article ul li,
#soft ul li {
	width: 1200px;
	margin: 10px 30px 10px -10px;
	padding: 5px 0;
}
.image {
	float: left;
	width: 120px;
	margin: 40px 0;
}
.subtitle {
	float: left;
	width: 400px;
}
footer {
	text-align: center;
 	background: url('../images/background.png');
	width: 100%;
	color: #fff;
	font-size: 0;
}
h3 {
	padding: 100px 0;
}
a {
	text-decoration: none;;
}
nav a {
	text-decoration: none;
	color: #000;
	font-weight: bold;
	font-size: 16px;
	padding: 20px 10px;
}
nav a:hover {
	color: #fff;
	background-color: #000;
}
#main ul li a {
	text-decoration: none;
	color: #000;
}
h3 a {
	color: #fff;
	font-size: 30px;
	text-decoration: none;
}
h3 a:hover {
	background-color: #fff;
	color: #000;
}
.item {
	width: 1180px;
	color: #fff;
	font-weight: bold;
	padding: 5px 10px;
	background: url('../images/background.png');
}
#screenshot img {
	max-width: 1200px;
}
.version {
	width: 100px;
}
.menu {
	width: 180px;
}
td {
	padding: 10px 0;
}