html,body,h1,h2,h3,h4,h5,h6,div,dl,dt,dd,ul,ol,li,p,blockquote,pre,hr,figure,table,caption,th,td,form,fieldset,legend,input,button,textarea,menu {
    margin: 0;
    padding: 0;
}
body {
    font-family: Helvetica Neue, Helvetica, PingFang SC, Hiragino Sans GB,Microsoft YaHei, SimSun, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    color: #6b6b6b;
    margin: 0px;
    padding: 0;
    font-size: Small;
    background: #f5f5f5;
}
audio:focus{
    outline:none;
    box-shadow: none;
}
header,footer,section,article,aside,nav,hgroup,address,figure,figcaption,menu,details {
    display: block;
}
caption,th {
    text-align: left;
    font-weight: normal;
}
html,body,fieldset,img,iframe,abbr {
    border: 0;
}
i,cite,em,var,address,dfn {
    font-style: normal;
}
[hidefocus],summary {
    outline: 0;
}
li {
    list-style: none;
}
h1,h2,h3,h4,h5,h6,small {
    font-size: 100%;
}
sup,sub {
    font-size: 83%;
}
pre,code,kbd,samp {
    font-family: inherit;
}
q:before,q:after {
    content: none;
}
textarea {
    overflow: auto;
    resize: none;
}
label,summary {
    cursor: default;
}
h1,h2,h3,h4,h5,h6,em,strong,b {
    font-weight: bold;
}
del,ins,u,s,a,a:hover {
    text-decoration: none;
}
body,textarea,input,button,select,keygen,legend {
    color: #2c3e50;
    outline: 0;
}
a,a:hover {
    color: #2c3e50;
}
.fl {
    float: left;
}
.fr {
    float: right;
}
.clearfix:after {
    content: "";
    display: block;
    clear: both;
}
#app{
    padding: 20px 0 ;
}
.main{
    width: 1200px;
    margin: auto;
}
.white-bg{
    background: #fff !important;
}
.gray-bg{
    background: #f9f9f9 !important;
}
.gray-border{
    border:1px solid #f9f9f9 !important;
}
.orange-bg{
    background: #ff5722 !important;
}
.orange-border{
    border:1px solid #ff5722 !important;
}
.pink-bg{
    background: #fdf1f1 !important;
}
.pink-border{
    border:1px solid #fdf1f1 !important;
}
.red-bg{
    background: #e64a3b !important;
}
.red-border{
    border:1px solid #e64a3b !important;
}
.darkgray-bg{
    background: #aaaaaa !important;
}
.darkgray-border{
    border:1px solid #aaaaaa !important;
}
.green-bg{
    background:#3ab57f !important;
}
.lightgreen-bg{
    background:#CDDC39 !important;
}
.green-border{
    border:1px solid #3ab57f !important;
}
.yellow-bg{
    background: #f6b000 !important;
}
.yellow-border{
    border:1px solid #f6b000 !important;
}
.lightgreen-border{
    border:1px solid #CDDC39 !important;
}
.yellow-font{
    color: #f6b000 !important;
}
.blue-font{
    color:#46b6fc !important;
}
.red-font{
    color: #e7574e !important;
}
.white-font{
    color: #fff !important;
}
.green-font{
    color:#3ab57f !important;
}
.gray-font{
    color: #dedede !important;
}
.darkgray-font{
    color: #999 !important;
}
.gray777-font{
    color: #777 !important;
}
.f12{
    font-size: 12px !important;
}
.f14{
    font-size: 14px !important;
}
.f16{
    font-size: 16px !important;
}
.f15{
    font-size: 15px !important;
}
.f18{
    font-size: 18px !important;
}
.f20{
    font-size: 20px !important;
}
.f50{
    font-size: 50px !important;
}
.line-height22{
    line-height: 22px;
}
.line-height26{
    line-height: 26px;
}
.line-height28{
    line-height: 28px;
}
.line-height30{
    line-height: 30px;
}
.line-height36{
    line-height: 36px;
}
.line-height46{
    line-height: 46px;
}
.weight-normal{
  font-weight: normal;
}
.align-left{
    text-align: left;
}
.align-center{
    text-align: center;
}
.align-right{
    text-align: right;
}
.vertical-align{
    vertical-align: middle
}
.position-relative{
    position: relative;
}
.position-absolute{
    position:absolute;
}
.position-fixed{
    position:fixed;
}
.p10{
    padding: 10px !important;
}
.p20{
    padding: 20px !important;
}
.pt10{
    padding-top: 10px !important;
}
.pt20{
    padding-top: 20px !important;
}
.pt30{
    padding-top: 30px !important;
}
.pb10{
    padding-bottom: 10px !important;
}
.pb20{
    padding-bottom: 20px !important;
}
.pb30{
    padding-bottom: 30px !important;
}
.ml10{
    margin-left:10px !important;
}
.ml20{
    margin-left:20px !important;
}
.ml30{
    margin-left:30px !important;
}
.mr5{
    margin-right:5px !important;
}
.mr10{
    margin-right:10px !important;
}
.mr20{
    margin-right:20px !important;
}
.mt10{
    margin-top:10px !important;
}
.mt17{
    margin-top:17px !important;
}
.mt20{
    margin-top:20px !important;
}
.mt30{
    margin-top:30px !important;
}
.mb10{
    margin-bottom:10px !important;
}
.mb20{
    margin-bottom:20px !important;
}
.underline{
    text-decoration: underline;
}

video::-internal-media-controls-download-button {
    display: none;
}
video::-webkit-media-controls-enclosure {
    overflow: hidden;
}
video::-webkit-media-controls-panel {
    width: calc(100% + 30px);
}
/*头部题型切换*/
.tab-btn-box{
    padding: 12px 44px;
    margin: 0 -44px;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
}
.tab-btn-box li{
    min-width:102px;
    height: 35px;
    line-height: 35px;
    text-align:center;
    border-radius: 35px;
    margin-right: 25px;
    cursor: pointer;
}
/**试卷头部信息*/
.test-title{
    padding-bottom: 15px;
    padding-top: 24px;
    border-bottom: 1px dotted #ccc;
}
.test-top-box{
    padding: 0 44px 12px;
}
.test-intro{
    padding: 15px 0;
}
/* 通用分页 */
.common-page {
    text-align: center;
    padding: 10px 0 20px;
}
/**空数据*/
.empty-block {
    min-height: 60px;
    text-align: center;
    width: 100%;
    height: 100%;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
}
.empty-block_empty{
    width: 50%;
    background: url(empty.png) 50% 40px no-repeat;
    padding: 200px 0 60px;
    overflow: hidden;
    color: #bbb;
    text-align: center;
    margin: auto;
    
}
/**可点击样式*/
.cursor-pointer{
    cursor: pointer;
}
/**单选和多选的样式*/
input[type="radio"]{
    width: 17px;
    height: 17px;
    -webkit-appearance: none;
    cursor: pointer;
    background-image: url(radio.png);
    background-repeat: no-repeat;
    vertical-align: middle;
    margin-right: 5px;
}
input[type="radio"]:checked {
    background-position: 0 -17px;
}
input[type="checkbox"]{
    width: 17px;
    height: 17px;
    -webkit-appearance: none;
    cursor: pointer;
    background-image: url(check.png);
    background-repeat: no-repeat;
    vertical-align: middle;
    margin-right: 5px;
}
input[type="checkbox"]:checked {
    background-position: 0 -17px;
}
.test-list img{
    max-width:100%;
}