.align-left { text-align: left; }.align-right { text-align: right; }.align-center { text-align: center; }.align-justify { text-align: justify; }.push-down { margin-bottom: 1em; }.push-left { margin-left: 1em; }.push-right { margin-right: 1em; }.push-up { margin-top: 1em; }@media(min-width: 980px) {.navbar-fixed-top + * {margin-top: 60px;}.navbar-fixed-bottom + *{margin-bottom: 60px;}}