.sck-header img {
    width:100%;
    height:auto;
    display: block;
}
.sck-header {
    background-image:url(/include_html/sancyoku/img/parts/head_line.png);
    background-repeat:repeat-x;
    padding-top:23px;
}

.sck-header-container {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    width: 1020px;
    margin: 1rem auto;
}

.sck-header-container .header-container{
    visibility: hidden;
    opacity: 0;
    position: absolute;
    top: 0;
    z-index: -9999;
}
.sck-header--right {
    display: flex;
}
.sck-header--right-postage {
    margin-right: 20px;
}

@media screen and (max-width:767px) {
    .sck-header-container {
        width: 100%;
        margin: 0;
        padding: 10px;
        box-sizing: border-box;
    }
    .sck-header--left {
        width: 170px;
    }
    .sck-header--right {
        width: 130px;
    }
    .sck-header--right-postage {
        margin-right: 0;
    }
}