@charset "UTF-8";
html,body{margin:0;padding:0;}
<meta name="viewport" content="width=device-width,minimum-scale=1,maximum-scale=1,user-scalable=no" />
<link rel="stylesheet" href="https://cdn.linearicons.com/free/1.0.0/icon-font.min.css">
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<script>
    $(function(){
       $('a[href^=#]').click(function() {
          var speed = 700;
          var href= $(this).attr("href");

          var target = $(href == "#" || href == "" ? 'html' : href);
          var position = target.offset().top;
          $('body,html').animate({scrollTop:position}, speed, 'swing');
          return false;
       });
    });
</script>
<style type="text/css">
@import url('https://fonts.googleapis.com/css?family=Marcellus');

* {
    margin: 0;
    padding: 0;
    font-size: 100%;
    font-weight: normal;
    list-style-type: none;
    box-sizing: border-box;
}

body {
    color: #111;
    letter-spacing: .05em;
    line-height: 7mm;
    font-size: 12px;
    font-family: 'Hiragino Kaku Gothic ProN', 'ヒラギノ角ゴ ProN W3',Meiryo, メイリオ, sans-serif;
    color="#999999
    word-break: break-all;
    text-align: justify;
    background: url(http://www.diced.jp/~injector/water067-2) center top fixed;
    background-size: cover;
}

html,body {
    height: 100%;
}

article {
    height: 10%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.fontweight{
    font-weight: lighter;
}

.wrapper {
    background: rgba(255,255,255,0.95);
    padding-bottom: 30px;
}

section {
    width: 80%;/* スマホサイズ画面幅　元75％ */
    max-width: 890px; /* 中身の幅 　元500ｐｘ*/
    margin: 0 auto;
    padding: 20px 0 0;
}

section h2 {
    text-align: center;
    margin: 30px 0 15px;
    font-family: 'Marcellus', serif;
    font-size: 24px;  
    letter-spacing: 2px;
}
  
section h2::after {
    content: '';
    display: block;
    width: 30px;
    height: 2px;
    background: #dfdfdf;
    margin: 10px auto 0;
}

section a {
    color: #888;
}

section a:visited {
    color: #008080
}


/* 2カラム */
*, *:before, *:after {
	box-sizing: border-box;
}
.col_2{
	width: 100%;
	display: flex;
	display: -ms-flexbox; /* IE10 */
	flex-wrap: wrap;
	-ms-flex-wrap: wrap; /* IE10 */
}
.col_2 > div{
	width: 50%;
	padding: 10px;
}

@media screen and (max-width: 640px) {
	.col_2 > div{
		width: 100%;
	}
}


.contents1,.contents2{
width: 100%;
height: 100%;/* カラムの高さ（長さ）元は100pxそれだとカラムからはみ出る*/
padding: 2%; /* カラムとカラムの間隔*/
}

.main{
display: flex;
}


footer {
    background: rgba(0,0,0,0.3);
    padding: 20px 10px;
    text-align: center;
    color: #fff;
    font-family: 'Marcellus', serif;
    letter-spacing: 1.5px;
}

footer a {
    letter-spacing: 0.5px;
    font-size: 11px;
    color: #fff;
    border-bottom: 1px solid rgba(255,255,255,0.2);
    padding: 0 5px;
}
</style>