html {
  font-size: 62.5%;
}
body {
    background: #003333;
    font-family: Meiryo;
    font-size: 1.4em;
  }
 header{
  background: #ffffff;
  width: 300px;
  padding: 10px;
  text-align: center;
  border: 5px solid #000000;
  margin: 30px auto;
}
main{
	margin:70px auto 20px auto;
	padding:6px;
	width:500px;
	border:1px solid #000000;
	border-top:1px solid #000000;
	background-color:#ffffff;
	font-size:0.8em;
	text-align:center;
	display: flex
}
#content{
  	width: 468px;
  	margin: 0 10px;
  	background-color:#EEEEEE
}
#leftside{
	width: 300px;
  	margin: 0 10px;
}
#first p:first-letter{
  color:#FF3300;
  font-size:300%;
}
#left p{
	text-align:left;
}
footer{
	clear:both;
	margin:70px auto 20px auto;
	padding:6px;
	width:500px;
	border:1px solid #000000;
	border-top:1px solid #000000;
	background-color:#ffffff;
	font-size:0.8em;
	text-align:left;
}