One side boxed width in full width container – Calculation

/*** One size boxed in full width ***/
calc((100% - 1300px) / 2) /* change 1300px to your boxed width */

@media (min-width:1025px) and (max-width:1400px) {
    selector {
        padding-left: 60px; /* left or right depending on which side is boxed*/
    }
} /* find max-width via inspect element */