#page-top {
    position: fixed;
    bottom: 1em;
    right: 1em;
    width: 5em;
}
#page-top img {
    width: 100%;
}
.wrap-sns {
    margin: 4em 0;
    text-align: center;
}
.wrap-sns li  {
    width: 13%;
    margin: 0 1em;
    display: inline-block;
}
#contents {
    max-width: 750px;
    width: 100%;
    margin: auto;
    font-family: 'Noto Sans JP',"游ゴシック体", YuGothic, "游ゴシック Medium", "Yu Gothic Medium", "游ゴシック", "Yu Gothic", sans-serif;
    line-height: 1.6;
    font-size: 26px;
}
@media (max-width: 750px) {
    #contents {
        font-size: 3.35vw;
    }
}
#contents img {
    width: 100%;
}