body {
    font-family: 'Slabo 27px', serif;
    text-align: center;
    background: #E9E9E9;
    color: #000;
}
a, a:hover {
    color: #000;
    text-decoration: none;
}

.box {
    height: 350px;
    position: absolute;
    left: 0;
    top: 50%;
    width: 100%;
    margin-top: -175px;
}
#logo {
    display: block;
    margin: 0 auto 38px auto;
}
.box_slogan {
    font-size: 0;
    text-align: center;
}
#logo_fb {
    display: block;
    display: inline-block;
}
#slogan {
    font-size: 36px;
    display: inline-block;
    vertical-align: top;
    margin: 23px 44px 0 0;
}

@media only screen and (max-height: 350px) {
    .box {
        position: static;
        margin-top: 26px;
    }
}