#boxes {
    padding: 40px 0px 60px 0px;
}

    #boxes .box {
        min-height: 250px;
        padding: 30px;
        border: 1px solid #dedede;
        -webkit-border-radius: 8px;
        -moz-border-radius: 8px;
        -ms-border-radius: 8px;
        -o-border-radius: 8px;
        border-radius: 8px;
    }

@media screen and (max-width: 768px)
{
    #boxes .box {
        margin-bottom: 20px;
    }
}