header {
    position: relative !important;
    z-index: 0 !important;
}
main {
    margin-top: 0 !important;
}

.link_container {
    margin-top: 6vw;
    padding: 0vw 8.0vw;
    width: 100%;
}

.link_container h1 {
    font-size: 4.3vw;
    text-align: center;
}
@media only screen and (max-width:560px) {
    .link_container h1 {
        font-size: 7.0vw;
        text-align: center;
    }
}

.thumb-container {
    width: 100%;
    margin-top: 8vw;
    padding: 0 6.6vw;
}
.thumb-container > div {
    width: 100%;
    overflow: auto;
}
.thumb-container > div > div {
    float: left;
    display: flex;
    flex-direction: column;
    margin-bottom: 6vw;
    margin-left: 2.7vw;
    margin-right: 2.7vw;
    width: 22.4vw;
}
.thumb-container > div > div img {
    width: 22.4vw;
}
.thumb-container > div > div span {
    width: 22.4vw;
    padding: 10px 0px;
    display: inline-block;
    font-size: 2.31vw;
    color: #91425B;
    font-family: "ヒラギノ角ゴ ProN W3", "Noto Sans JP";
    text-align: center;
}
@media only screen and (max-width:560px) {
    .thumb-container > div > div {
        width: 38.21vw;
        margin-left: 1.6vw;
        margin-right: 1.6vw;
    }
    .thumb-container > div > div img {
        width: 38.21vw;
        height: 38.21vw;

    }
    .thumb-container > div > div span {
        width: 38.21vw;
        font-size: 3.96vw;
    }

}