@charset "utf-8";

/* ----- all ----- */

html {
    height: 100%;
}

body {
    margin: 0;
    height: 100%;
    background-color: #fff;
}

footer {
    position: fixed;
    z-index: 11;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.main_imgBox {
    height: 100vh;
    overflow: hidden;
    position: relative;
}

.main_img {
    z-index: 10;
    opacity: 0;
    width: 100%;
    height: 100vh;
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    position: absolute;
    left: 0;
    top: 0;
    -webkit-animation: anime 30s 0s infinite;
    animation: anime 30s 0s infinite;
}

img.main_img_link {
    z-index: 12;
    width: 100%;
    height: 100%;
    border: 10px #ededed solid;
    box-sizing: border-box;
}

.main_img:nth-of-type(2) {
    -webkit-animation-delay: 6s;
    animation-delay: 6s;
}

.main_img:nth-of-type(3) {
    -webkit-animation-delay: 12s;
    animation-delay: 12s;
}

.main_img:nth-of-type(4) {
    -webkit-animation-delay: 18s;
    animation-delay: 18s;
}

.main_img:nth-of-type(5) {
    -webkit-animation-delay: 24s;
    animation-delay: 24s;
}

@keyframes anime {
    0% {
        opacity: 0;
    }

    8% {
        opacity: 1;
    }

    17% {
        opacity: 1;
    }

    25% {
        opacity: 0;
    }

    100% {
        opacity: 0
    }
}