*{
    margin: 0;
    padding: 0;
}
#main_window{
    display: flex;
    /*align-items: center;*/
    justify-content: center;
    width: 75%;
    height: 80%;
   /* padding: 5%;*/
    overflow: hidden;
}
#subtitle_view{
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    
}

#pic_view{
    display: flex;
    flex-direction: row;
    justify-content: center;
    height: 90%;
    width: 95%;
    margin: 0 auto;
}
.left_side{
    width:60%;
    margin-right:10px;
    height: 100%;
    overflow: hidden;
}
.right_side{
    width:40%;
    margin-left:10px;
    height: 100%;
    overflow: hidden;
}
.pic_left{
    width: 49%;
    margin-left: 1%;
    margin-right: 1%;
}
.pic_right{
    width: 49%;
    margin-left: 1%;
    margin-right: 1%;
}