body { height: 100%; display: -webkit-box; display: -moz-box; display: -ms-flexbox; display: -webkit-flex; display: flex; -webkit-box-direction: normal; -moz-box-direction: normal; -webkit-box-orient: horizontal; -moz-box-orient: horizontal; -webkit-flex-direction: row; -ms-flex-direction: row; flex-direction: row; -webkit-flex-wrap: nowrap; -ms-flex-wrap: nowrap; flex-wrap: nowrap; -webkit-box-pack: center; -moz-box-pack: center; -webkit-justify-content: center; -ms-flex-pack: center; justify-content: center; -webkit-align-content: stretch; -ms-flex-line-pack: stretch; align-content: stretch; -webkit-box-align: stretch; -moz-box-align: stretch; -webkit-align-items: stretch; -ms-flex-align: stretch; align-items: stretch; } body > nav { -webkit-box-ordinal-group: 2; -moz-box-ordinal-group: 2; -webkit-order: 1; -ms-flex-order: 1; order: 1; -webkit-box-flex: 0; -moz-box-flex: 0; -webkit-flex: 0 0 250px; -ms-flex: 0 0 250px; flex: 0 0 250px; -webkit-align-self: auto; -ms-flex-item-align: auto; align-self: auto; width: 30px; /* To make the transition work nicely. (Transitions to/from "width:auto" are buggy in Gecko and Webkit, at least. See http://bugzil.la/731886 for more info.) */ -webkit-transition: flex 0.3s ease-out; transition: flex 0.3s ease-out; background: @darkest; } body > article { -webkit-box-ordinal-group: 3; -moz-box-ordinal-group: 3; -webkit-order: 2; -ms-flex-order: 2; order: 2; -webkit-box-flex: 1; -moz-box-flex: 1; -webkit-flex: 1 1 auto; -ms-flex: 1 1 auto; flex: 1 1 auto; -webkit-align-self: stretch; -ms-flex-item-align: stretch; align-self: stretch; overflow-y:auto; overflow-x:hidden; background:#f4f4f4; background:#f7f7f7; background:#fff; } body > aside { -webkit-box-ordinal-group: 4; -moz-box-ordinal-group: 4; -webkit-order: 3; -ms-flex-order: 3; order: 3; -webkit-box-flex: 0; -moz-box-flex: 0; -webkit-flex: 0 0 250px; -ms-flex: 0 0 250px; flex: 0 0 250px; -webkit-align-self: auto; -ms-flex-item-align: auto; align-self: auto; background:#f7f7f7; border-left:1px solid @border; overflow-x:hidden; overflow-y:auto; } /* Legacy Firefox implementation treats all flex containers as inline-block elements. */ @-moz-document url-prefix() { .flex-container { width: 100%; -moz-box-sizing: border-box; } }