.fw header .sns_icon {
    position: absolute;
    right: 150px;
    top: 0;
    padding: 0;
    width: auto;
    height: 30px;
    padding: 20px 10px 0 0;
    vertical-align: top;
    display: inline-block;
    border: none;
}
.fw header .sns_icon a {
    padding: 8px 0;
    margin-left: 15px;
}

@media only screen and (max-width: 640px) {
    .fw header .sns_icon {
        right: 10px;
        width: auto;
        height: 15px;
        padding: 10px 5px 0 0;
        border: none;
    }
    .fw header .sns_icon a {
        padding: 5px 0;
        margin-left: 7px;
    }
}