main {
    text-align: center;
    font-family: "Yu Mincho";
}
h1 {
    padding-top: 40px;
}
.title {
    margin-bottom: 50px;
}
.imgs {
    width: 70%;
    margin: auto;
}
.imgs img {
    width: 100%;
    margin-bottom: 0;
    padding-bottom: 0;
    margin: auto;
}
.imgs img:first-child {
    margin-bottom: 50px;
}
.imgs p {
    font-size: 20px;
    font-weight: bold;
}
.sp p{
    padding-top: 100px;
}
.sp img {
    width: 60%;
}
footer {
    text-align: center;
    font-size: 12px;
    color:gray;
    margin-bottom: 20px;
}