.sys-icon-right
{
    background: url('../images/icons/right.png') no-repeat center center;
    background-size: 16px 16px;
}
.sys-icon-settings
{
    background: url('../images/icons/settings.png') no-repeat center center;
    background-size: 16px 16px;
}
.sys-icon-switch
{
    background: url('../images/icons/switch.png') no-repeat center center;
    background-size: 16px 16px;
}
.sys-icon-user
{
    background: url('../images/icons/user.png') no-repeat center center;
    background-size: 16px 16px;
}
.sys-icon-court
{
    background: url('../images/icons/court.png') no-repeat center center;
    background-size: 16px 16px;
}
.sys-icon-menu
{
    background: url('../images/icons/menu.png') no-repeat center center;
    background-size: 16px 16px;
}
.sys-icon-key
{
    background: url('../images/icons/key.png') no-repeat center center;
    background-size: 16px 16px;
}
.sys-icon-exit
{
    background: url('../images/icons/exit.png') no-repeat center center;
    background-size: 16px 16px;
}
.sys-icon-enter
{
    background: url('../images/icons/enter.png') no-repeat center center;
    background-size: 16px 16px;
}
.sys-icon-theme
{
    background: url('../images/icons/theme.png') no-repeat center center;
    background-size: 16px 16px;
}
.sys-icon-file
{
    background: url('../images/icons/file.png') no-repeat center center;
    background-size: 16px 16px;
}
.sys-icon-about
{
    background: url('../images/icons/about.png') no-repeat center center;
    background-size: 16px 16px;
}
.sys-icon-ftp
{
    background: url('../images/icons/ftp.png') no-repeat center center;
    background-size: 16px 16px;
}
.sys-icon-nginx
{
    background: url('../images/icons/nginx.png') no-repeat center center;
    background-size: 16px 16px;
}
.sys-icon-redis
{
    background: url('../images/icons/redis.png') no-repeat center center;
    background-size: 16px 16px;
}
.sys-icon-es
{
    background: url('../images/icons/elasticsearch.png') no-repeat center center;
    background-size: 16px 16px;
}
.sys-icon-qidong
{
    background: url('../images/icons/qidong.png') no-repeat center center;
    background-size: 16px 16px;
}
.sys-icon-weiqidong
{
    background: url('../images/icons/weiqidong.png') no-repeat center center;
    background-size: 16px 16px;
}
.sys-icon-exchanging
{
    background: url('../images/icons/exchanging.png') no-repeat center center;
    background-size: 16px 16px;
}

.zh_CN
{
    background: url('../images/lang/zh_CN.png') no-repeat center center;
    background-size: 16px 16px;
}

.en_US
{
    background: url('../images/lang/en_US.png') no-repeat center center;
    background-size: 16px 18px;
}