body {
    background-color: #4c310f;
    font-family: 'Titillium Web', Arial, sans-serif;
    font-size: 1.00rem;
}
.container {
    width: 80%;
    max-width: 1200px;
    background-color: #FBEEC2;
    min-height: 100%;
    padding: 0;
}

section {
    display: flex;
    flex-wrap: wrap;
}

article {
    min-width: 25%;
    height: 300px;
    width: 200px;
    text-align: center;
    flex: auto;
    display: table;
}

article a {
    color: #FBEEC2;
    font-weight: bold;
    text-decoration: none;
    display: table-cell;
    vertical-align: middle;
}

.filler {
    overflow: hidden;
    position: fixed;
    width: 100%;
}

.bb {
    background-color: #d4955d;
}

.br {
    background-color: #659DBB;
}

.bg {
    background-color: #DAAD85;
}

.by {
    background-color: #418ab1;
}

article.bg a {
    color: #f1ecde;
}

.mb,
.rc {
    background-position: center center;
}

.mb,
.mblt,
.mbrt,
.mblb,
.mbrb {
    background-image: url(../images/sm-airplane-bridge.jpg);
    width: 50%;
    background-size: 200%;
}

.rc,
.rclt,
.rcrt,
.rclb,
.rcrb {
    background-image: url(../images/sm-rocky-coast.jpg);
    width: 50%;
    background-size: 200%;
}

.mblt,
.rclt {
    background-position: left top;
}

.mbrt,
.rcrt {
    background-position: right top;
}

.mblb,
.rclb {
    background-position: left bottom;
}

.mbrb,
.rcrb {
    background-position: right bottom;
}

@media screen and (max-width: 1020px) {
    .container {
        width: 100%;
        height: auto;
    }
}

@media screen and (min-width: 801px) {
    .container {
        margin: 0 auto;
    }
}

@media screen and (max-width: 800px) {
    article {
        min-width: 50%;
        height: 200px;
    }
}

@media screen and (max-width: 400px) {
    article {
        height: 100px;
        width: 100%;
    }
    .mb,
    .mblt,
    .mbrt,
    .mblb, 
    .mbrb,
    .rc,
    .rclt,
    .rcrt,
    .rclb, 
    .rcrb {
        width: 100%;
    }

}