.nav-content{
    max-width: 1200px;
    margin: 0 auto;
}
.vi-content{
    max-width: 1200px;
    margin: 0 auto;
    background: #fff;
    min-height: 500px;
}
.search-form{
    padding: 20px;
}
.table-box{
    padding: 0 20px 20px;
}
.add-form .el-dialog{
    max-width: 450px;
}
.add-form input{
    width: 300px;
}
.page-block .el-pagination{
    padding: 10px;
    text-align: right;
}