Edit in JSFiddle

.first {
    background-color: #EEE;
}

.second {
    background-color: #DDD;
}

.third {
    background-color: #CCC;
}

.fourth {
    background-color: #BBB;
}

.reverseOrder,
.reverseOrder > .child {
    padding: 10px;
    -webkit-transform: rotate(180deg);
       -moz-transform: rotate(180deg);
        -ms-transform: rotate(180deg);
         -o-transform: rotate(180deg);
            transform: rotate(180deg);
}

<div class="reverseOrder">
    <div class="child first">First child</div>
    <div class="child second">Second child</div>
    <div class="child third">Third child</div>
    <div class="child fourth">Fourth child</div>
</div>