@media only screen and (max-width:2000px){
@media only screen and (min-width:1051px){
    .index_header{
        min-height: 150px;
    }
.item_div{
width: 19%;
}
.img_area{
    margin-left: 4%;    
}
.txt_div{
    font-size: 24px;
}
    /**/
}
}
 /*Above 2001 pixel below*/
@media only screen and (min-width:2001px){
    .item_div{
    width: 16%;
    }
    .img_area{
        margin-left: 4%;    
    }
    .txt_div{
        font-size: 25px;
    }
}