body { width: 100%; height: 100%; background: white no-repeat center center fixed; background-size: cover; tab-size: 4; -moz-tab-size: 4; } #wrapper { width: 60%; } .card-header { background-color: #FEA63C; color: white; font-size: 16px; font-weight: 600; height: 32px; padding-top: 4px; } .list-group-item { height: 32px; padding-top: 4px; } .card { border: 0px; } .navbar { background: transparent !important; } /* change the number of columns in card-columns */ @media (min-width: 34em) { .card-columns { -webkit-column-count: 1; -moz-column-count: 1; column-count: 1; } } @media (min-width: 48em) { .card-columns { -webkit-column-count: 1; -moz-column-count: 1; column-count: 1; } } @media (min-width: 62em) { .card-columns { -webkit-column-count: 2; -moz-column-count: 2; column-count: 2; } } @media (min-width: 75em) { .card-columns { -webkit-column-count: 2; -moz-column-count: 2; column-count: 2; } }