html{
    width:1000px;
    margin:-30px auto;
    font-size: 16px;
    font-family: 'Noto Serif JP', serif;
}
nav ul {
    display:flex;
    gap:20px;
    list-style-type: none;
    margin-top: 60px;
    margin-left: 140px;
}
nav ul a{
    text-decoration: none;
    color:darkslategray;
}
nav ul a:hover{
    color:aquamarine;
}
header{
    display: flex;
}
header img{
    width:200px;
    margin-top: 20px;
    margin-left: 20px;
}
h1{
    margin-top:0;
    text-align: center;
    margin-top: -160px;
    margin-bottom: 110px;
    color:white;
    font-size: 40px;
}
main{
    width:700px;
    margin:0 auto;
}
h3{
    text-align: center;
    font-size: 1.4rem;
}
.about{
    display:flex;
    gap:40px;
    font-size: 1rem;
}
.toranomon{
    display:flex;
    gap:40px;
    font-size: 1rem;
}
.video{
    display:flex;
    gap:40px;
    margin-left: 10px;
}
video{
    border-radius: 20px;
    gap:40px;
}
.tokyotower{
    display: flex;
    gap:20px;
}
.text{
    text-align: center;
}
h4{
    text-align: center;
}
iframe{
    margin-left: 60px;
}
footer{
    width:1000px;
    margin:0 auto;
    background-color: rgb(189, 33, 80);
    text-align: center;
    color:white;
    margin-bottom: 0px;
    margin-top: 60px;
    height:30px;
}