/*：本代码只用作演示,不是源码。源码下载链接: http://www.bootstrapmb.com/item/1516(此说明不在下载的源码里，只用在演示页面里)*//* * metismenu - v2.7.2 * A jQuery menu plugin * https://github.com/onokumus/metismenu#readme * * Made by Osman Nuri Okumus <onokumus@gmail.com>(https://github.com/onokumus) * Under MIT License */.metismenu .arrow {    float: right;    line-height: 1.42857}[dir=rtl] .metismenu .arrow {    float: left}.metismenu .glyphicon.arrow:before {    content: "\e079"}.metismenu .active>a>.glyphicon.arrow:before {    content: "\e114"}.metismenu .fa.arrow:before {    content: "\f104"}.metismenu .active>a>.fa.arrow:before {    content: "\f107"}.metismenu .ion.arrow:before {    content: "\f3d2"}.metismenu .active>a>.ion.arrow:before {    content: "\f3d0"}.metismenu .plus-times {    float: right}[dir=rtl] .metismenu .plus-times {    float: left}.metismenu .fa.plus-times:before {    content: "\f067"}.metismenu .active>a>.fa.plus-times {    -webkit-transform: rotate(45deg);    -ms-transform: rotate(45deg);    -o-transform: rotate(45deg);    transform: rotate(45deg)}.metismenu .plus-minus {    float: right}[dir=rtl] .metismenu .plus-minus {    float: left}.metismenu .fa.plus-minus:before {    content: "\f067"}.metismenu .active>a>.fa.plus-minus:before {    content: "\f068"}.metismenu .collapse {    display: none}.metismenu .collapse.in {    display: block}.metismenu .collapsing {    position: relative;    height: 0;    overflow: hidden;    -webkit-transition-timing-function: ease;    -o-transition-timing-function: ease;    transition-timing-function: ease;    -webkit-transition-duration: .35s;    -o-transition-duration: .35s;    transition-duration: .35s;    -webkit-transition-property: height, visibility;    -o-transition-property: height, visibility;    transition-property: height, visibility}.metismenu .has-arrow {    position: relative}.metismenu .has-arrow:after {    position: absolute;    content: "";    width: .5em;    height: .5em;    border-width: 1px 0 0 1px;    border-style: solid;    border-color: initial;    right: 2em;    -webkit-transform: rotate(-224deg) translateY(-50%);    -ms-transform: rotate(-224deg) translateY(-50%);    -o-transform: rotate(-224deg) translateY(-50%);    transform: rotate(-224deg) translateY(-50%);    -webkit-transform-origin: top;    -ms-transform-origin: top;    -o-transform-origin: top;    transform-origin: top;    top: 50%;    -webkit-transition: all .3s ease-out;    -o-transition: all .3s ease-out;    transition: all .3s ease-out;}[dir=rtl] .metismenu .has-arrow:after {    right: auto;    left: 1em;    -webkit-transform: rotate(135deg) translateY(-50%);    -ms-transform: rotate(135deg) translateY(-50%);    -o-transform: rotate(135deg) translateY(-50%);    transform: rotate(135deg) translateY(-50%)}.metismenu .active>.has-arrow:after,.metismenu .has-arrow[aria-expanded=true]:after {    -webkit-transform: rotate(-135deg) translateY(-50%);    -ms-transform: rotate(-135deg) translateY(-50%);    -o-transform: rotate(-135deg) translateY(-50%);    transform: rotate(-135deg) translateY(-50%)}/*：本代码只用作演示,不是源码。源码下载链接: http://www.bootstrapmb.com/item/1516(此说明不在下载的源码里，只用在演示页面里)*/