.activity-wrap{
    margin:28px 109px;
}

.activity-header{
    padding:10px 20px;
    background-color: #ffd966;
    margin-top:20px;
    font-size: 22px;
    border-radius: 10px;
    font-weight: 800;
    font-family: "Noto Serif JP", sans-serif;
}

.activity-desc{
    margin-left: 5px;
    margin-top: 20px;
}

.activity-box{
    margin-top: 30px;
    padding: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: #fff3cc;
    border-radius: 45px;
}

@media screen and (max-width: 600px) {
    .activity-wrap{
        margin:10px;
    }
    .activity-box{
        margin:0;
        margin-top:30px
    }
}

.activity-title{
    font-weight: bold;
    font-size: 24px;
    padding: 10px;
}

.desc{
    margin-bottom: 15px;
}