.onerow-fluid>.col300{width:300px!important;}
.onerow-fluid>.col670{width: calc(100% - 320px) !important;}

@media (min-width:1024px) and (max-width:1440px){
        body {
        background-position: center top !important;
            -webkit-background-size: 120% !important;
            -moz-background-size: 120% !important;
            -o-background-size: 120% !important;
        background-size: 120% !important;
        }
        .onerow-fluid {
        width: 96%;
        margin-left:2%;
        }
        
        
} 
@media (max-width:1024px){
.onerow-fluid {width:100%;}
}
@media (min-width:1441px){
.onerow-fluid {width:70%;}

}
@media (max-width:969px){
.onerow-fluid>.col670{width: 100%!important;}
}