body {
    font-family: serif;
    color: #6d563a;
    background-color: #f0fafc;
}

main {
    margin: 200px 0 30px 0;
}

.top{
    text-decoration: underline 2px #80d7e3;
    text-underline-offset: 20%;
    text-align: center;
}

.campaign h1 {
    text-align: center;
}

.campaign h3 {
    text-align: center;
}

.mock-case h3 {
    text-align: center;
    background-color: #80d7e3;
    width: 200px;
    margin: auto;
}

.note {
    text-align: center;
    color: #ff0000;
}

.mock-case img {
    width: 300px;
    display: block;
    margin: auto;
}

.mock-case p {
    text-align: center;
    font-weight: bold;
    font-size: 12pt;
}

.yuon-so a {
    display: block;
    margin: auto;
    text-align: center;
    padding: 20px;
    background-color: #80d7e3;
    width: 300px;
    color: #ffffff;
    text-decoration: none;
    border-radius: 4px;
    line-height: 1;
    font-weight: bold;
    box-shadow: 5px 5px 5px 0 #808080;
}

.yuon-so a:hover {
    transform: scale(1.2);
}

@media screen and (min-width: 768px) {
    .br-sp {
        display: none;
    }
}