html {
    overflow-x: hidden;
}

body {
    color: aliceblue;
    background-color: black;
    overflow-x: hidden;
    overflow-y: hidden;
}

header { 
    display: flex;
    justify-content: space-between;
}

header span{ 
    word-break: keep-all;
}

header MARQUEE {
    width: 60%;
    margin: 0 1rem 0 1rem;
}

header a {
    text-decoration: none;
    color: aliceblue;
    margin: 0;
}

header .right {
    float: right;
    white-space:nowrap;
}

nav {
    width: 100%;
    height: 8rem;
}

nav #home {
    border: none;
}

nav #home img {
    animation: rotate_image 60s ease-in-out infinite;transform-origin: 50% 50%;
    filter: drop-shadow(16px 16px 20px red) invert(75%);
}

@keyframes rotate_image{
    100% {
        transform: rotate(360deg);
    }
}

nav a {
    text-decoration: none;
    color: aliceblue;
    border: 4px rgba(162, 70, 255, 0.562) double;
    float: left;
    margin: 2px;
}

section {
    background: url(../img/Momiji_flow.png);
    width: 100%;
    /* border: 1px rgb(155, 55, 255) dashed; */
}