.container-fluid_height_big {
    /*height: unset;*/
    height: 80vh!important;
    width: 100%;
    position: relative;
}

@media screen and (max-width: 800px) {
    .container-fluid_height_big {
    height: 70vh!important;
    width: 100%;
    position: relative;
    }
}

.col_flex{
    display: flex;
    flex-direction: column;
    flex: 1;
  }