body {
    background:#acacac;
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    text-align: center;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
}
h1 {
    font-family: 'futura';
    color:#ffffff;
    width:100%;
    text-align:left;
}
.container {
    display: inline-flex; /* or inline-flex */
}
.box-border {
    border: 1px solid #000000;
    padding: 1rem;
    width: 100%;
}

@media (min-width: 576px) {

}

@media (min-width: 768px) {

}

@media (min-width: 992px) {
    .box-border {
        width: 40%;
        margin: 2.5%;
    }
}

@media (min-width: 1200px) {

}

@media (min-width: 1400px) {

}