Centre elements on both axis - LESSified version of http://goo.gl/UN80L

lesscss-centre

.center-container {
    text-align: center;

    &:before {
        content: '';
        display: inline-block;
        height: 100%;
        vertical-align: middle;
        margin-right: -0.25em;
    }

    .center {
        display: inline-block;
        vertical-align: middle;
    }
}