body 
{
    color: #444;
    font: 16px/180%  "Montserrat","游ゴシック",YuGothic,"ヒラギノ角ゴ Pro W3","Hiragino Kaku Gothic Pro","メイリオ",Meiryo,sans-serif;
    overflow-y: scroll;
    -webkit-text-size-adjust: 100%;
}

a 
{
    margin:0;
    padding:0;
    font-size:100%;
    vertical-align:baseline;
    background:transparent;
    text-decoration:none;
}

.wrapper 
{
    margin:0 auto;
    max-width:400px;
    width:100%;
    padding: 20px 0px;
}

.box 
{
    width:85%;
    padding: 15px;
    background-color: #91b9d6;
    border-radius: 5px;
    color: #fff;
    margin:auto auto;
}

.box h1
{
    color:#fff;
    font-size:1.5em;
    text-align:center;
}

.box2 
{
    display: block;
    margin:30px auto 15px auto;
    width: 95%;
}

.btn 
{
    display: table-cell;
    background-color: #6d6d6d;
    border: 1px solid #858585;
    padding: 8px 10px;
    border-radius: 5px;
    -moz-border-radius: 4px;
    -webkit-border-radius: 4px;
    color: #fff;
    width: 400px; /* wrapperのmax-widthと同じ */
    height: 50px;
    text-align:center;
    vertical-align: middle;
}