html {
    scroll-behavior: smooth;
}

body {
    font-family: Georgia, 'Times New Roman', Times, serif;
    animation: fadein 3.0s forwards;
}

@keyframes fadein {
    0% {opacity: 0;}
    100% {opacity: 1;}
}

header {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

nav {
    border: 1px solid black;
    display: flex;
    padding-left: 60px;
    padding-right: 60px;
    margin: 200px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.mokuji {
    text-align: center;
    text-decoration: underline;
}

.index-item {
    list-style: none;
    width: fit-content;
    margin: auto;
    line-height: 2.0;
}

.index-item a {
    text-decoration: none;
    color: black;
    transition: color 0.3s;
}

.index-item a:hover {
    color: rgb(152, 150, 150);
}

.travel {
    width: 95%;
    height: 100vh;
}