.custom_big_img{
    display: block;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 30px;
    width: 80%;
}

.custom_main_text{
    text-align: justify;
    font-size: 2vw;
    width: 80%;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 50px;
}

.custom_small_img{
    display: block;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 30px;
    width: 27%;
}

.custom_midle_text{
    text-align: justify;
    font-size: 1.5vw;
    width: 80%;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 50px;
}

.custom_minor_text{
    text-align: justify;
    font-size: 1vw;
    font-style: italic;
    width: 80%;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 50px;
}

.welcome-video{
    width: 80%;
}

.spread-page{
    display: flex;
    flex-wrap: wrap;
    position: relative;
    flex-direction: row;
}

.spread-page-left-side{
    position: relative;
    width: 45%;
}

.spread-page-right-side{
    position: relative;
    width: 45%;
}