/*：这只是演示代码。源码下载链接: http://www.bootstrapmb.com/item/13382(这个说明仅在演示里会看到,下载的源码里没有)*/.nice-select {    -webkit-tap-highlight-color: transparent;    background-color: #fff;    border-radius: 5px;    border: solid 1px #e8e8e8;    box-sizing: border-box;    clear: both;    cursor: pointer;    display: block;    float: left;    font-family: inherit;    font-size: 14px;    font-weight: normal;    height: 42px;    line-height: 40px;    outline: 0;    padding-left: 18px;    padding-right: 30px;    position: relative;    text-align: left !important;    -webkit-transition: all .2s ease-in-out;    transition: all .2s ease-in-out;    -webkit-user-select: none;    -moz-user-select: none;    -ms-user-select: none;    user-select: none;    white-space: nowrap;    width: auto}.nice-select:hover {    border-color: #dbdbdb}.nice-select:active,.nice-select.open,.nice-select:focus {    border-color: #999}.nice-select:after {    border-bottom: 2px solid #999;    border-right: 2px solid #999;    content: '';    display: block;    height: 5px;    margin-top: -4px;    pointer-events: none;    position: absolute;    right: 12px;    top: 50%;    -webkit-transform-origin: 66% 66%;    -ms-transform-origin: 66% 66%;    transform-origin: 66% 66%;    -webkit-transform: rotate(45deg);    -ms-transform: rotate(45deg);    transform: rotate(45deg);    -webkit-transition: all .15s ease-in-out;    transition: all .15s ease-in-out;    width: 5px}.nice-select.open:after {    -webkit-transform: rotate(-135deg);    -ms-transform: rotate(-135deg);    transform: rotate(-135deg)}.nice-select.open .list {    opacity: 1;    pointer-events: auto;    -webkit-transform: scale(1) translateY(0);    -ms-transform: scale(1) translateY(0);    transform: scale(1) translateY(0)}.nice-select.disabled {    border-color: #ededed;    color: #999;    pointer-events: none}.nice-select.disabled:after {    border-color: #ccc}.nice-select.wide {    width: 100%}.nice-select.wide .list {    left: 0 !important;    right: 0 !important}.nice-select.right {    float: right}.nice-select.right .list {    left: auto;    right: 0}.nice-select.small {    font-size: 12px;    height: 36px;    line-height: 34px}.nice-select.small:after {    height: 4px;    width: 4px}.nice-select.small .option {    line-height: 34px;    min-height: 34px}.nice-select .list {    background-color: #fff;    border-radius: 5px;    box-shadow: 0 0 0 1px rgba(68, 68, 68, 0.11);    box-sizing: border-box;    margin-top: 4px;    opacity: 0;    overflow: hidden;    padding: 0;    pointer-events: none;    position: absolute;    top: 100%;    left: 0;    -webkit-transform-origin: 50% 0;    -ms-transform-origin: 50% 0;    transform-origin: 50% 0;    -webkit-transform: scale(0.75) translateY(-21px);    -ms-transform: scale(0.75) translateY(-21px);    transform: scale(0.75) translateY(-21px);    -webkit-transition: all .2s cubic-bezier(0.5, 0, 0, 1.25), opacity .15s ease-out;    transition: all .2s cubic-bezier(0.5, 0, 0, 1.25), opacity .15s ease-out;    z-index: 9}.nice-select .list:hover .option:not(:hover) {    background-color: transparent !important;    color:white;}.nice-select .option {    cursor: pointer;    font-weight: 400;    line-height: 40px;    list-style: none;    min-height: 40px;    outline: 0;    padding-left: 18px;    padding-right: 29px;    text-align: left;    -webkit-transition: all .2s;    transition: all .2s}.nice-select .option:hover,.nice-select .option.focus,.nice-select .option.selected {    background-color: #f6f6f6}.nice-select .option.selected {    font-weight: bold}.nice-select .option.disabled {    background-color: transparent;    color: #999;    cursor: default}.no-csspointerevents .nice-select .list {    display: none}.no-csspointerevents .nice-select.open .list {    display: block}/*：这只是演示代码。源码下载链接: http://www.bootstrapmb.com/item/13382(这个说明仅在演示里会看到,下载的源码里没有)*/