.content{
    margin-top: 68px;
    margin-bottom: 30px;
}
.line {
    border-top: 1px solid #3bbe7a;
    width: 30px;
    margin: 20px auto 40px;
}
.main_title{
    text-align: center;
    margin-top: 20px;
    font-size: 26px;
    margin-bottom: 20px;
    color: #333;
    font-weight: 400;
}
.content_image{
    margin-top: 10px;
    margin-bottom: 20px;
    text-align: center;
}
.content_image img{
    width: 100%;
    height: 300px;
}
.sub_title{
    margin-top: 10px;
    margin-bottom: 20px;
    font-size: 1.5em;
    padding: 10px;
    color: #333;
}
.content_box p{
    text-indent: 2em;
    font-size: 1.5rem;
    letter-spacing: 1px;
    color: #607284;
}