.mont-schema-frame {  
    height: 600px;
    border: 0px solid #484; 
    background: #a3a3a3;
}

@media screen and (max-width: 999px) {
    .mont-schema-frame {  
        height: 400px; 
        border: 0px solid #484; 
        background: #a3a3a3;
    }
}

.carousel-item {
    height: 170px;
    background: #777;
}

.schema-btn-group {
    position:relative;
    top:-50px;
    left:10px;
}