/* 去除默认样式 */
a{
    color: #000;
    text-decoration: none;
}
a:hover{
    color: #000;
    text-decoration: none;
}
ul{
    list-style: none;
}
/* 媒体查询当屏幕小于992px时 */
@media (max-width: 992px) {
    .nav-tit {
      display: none;
    }
    #navbarCollapse ul {
       width: 50%;
    }
    .about div{
        margin: 20px 0;
    }
    .online-exams,.instr-online,.super-work{
        width: 30vw;
        height: 80vh;
        margin: 0 auto;
    }
}
/* 导航 */
nav{
    background-color: #fff;
}
h4,h3{
    margin: 0 auto;
    text-align: center;
}
p{
    text-align: center;
}
.box{
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.mg-top{
    margin-top: 100px;
}
.mg-top2{
    margin-top: 50px;
}
.pad{
    padding: 50px;
}
.pad-top{
    padding:80px 0;
}
.name :first-child{
    /* color: #000; */
    font-size: 18px;
    font-weight: bold;
    letter-spacing: 4px;
}
.text-uppercase{
    font-size: small;
}
#navbarCollapse ul{
    margin-right: 0;
    
}
#navbarCollapse ul li{
    height: 60px;
    line-height: 60px;
    margin: 0 40px;
    font-size: 20px;
    text-align: center;
}
/* 导航激活样式 */
.current{
    color: #75a4ff;
    border-bottom: 3px solid #75a4ff;
}
/* 字体样式 */
.group-ma{
    color: #ff5e80;
}
.smare-re{
    color: #00d3aa;
}
.about{
    background-color: #747474;
    color: white;
    padding: 80px 0;
}
.online-exams{
   background-image: url('../img/在线考试边框.png');
   background-size:100% 100%;
   /* height: 500px; */
}
.online-exams h5{
    color: #2eb3fe;
}
.instr-online{
    background-image: url("../img/文书在线边框.png");
    background-size:100% 100%;
    /* height: 500px; */
}
.instr-online h5{
    color: #c66def;
}
.super-work{
    background-image: url("../img/监理工作边框.png");
    background-size:100% 100%;
    /* height: 500px; */
}
.super-work h5{
    color: #ffa243;
}
.imgabout img{
    width: 100%;
    /* height: 100%; */
}
.row-box{
    display: flex;
    flex-direction: row;
}
.boxs{
    background-color: #eee;
}
/* .boxstext{
    text-align: left;
} */