.head .head-brand{
    /*color: #fff;*/
    display: inline-block;
    padding-top: .3125rem;
    padding-bottom: .3125rem;
    margin-right: 1rem;
    font-size: 1.25rem;
    line-height: inherit;
    white-space: nowrap;
    text-decoration:none;
}
.login-div{
    padding: 4px 8px;
    font-size: 14px;
    width: 56px;
    height: 21px;
    line-height: 20px;
    float: left;
    color: #495057;
    text-align: center;
    white-space: nowrap;
    background-color: #e9ecef;
    border: 1px solid #ced4da;
}
.login-input{
    color: #495057;
    background-color: #fff;
    background-clip: padding-box;
    border: 1px solid #ced4da;
    height: 21px;
    padding: 4px 8px;
    width: 177px;
}
.login-error{
    word-wrap: break-word;
    text-align: center;
    margin: 20px 0px 0px 20px;
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
    padding: 12px 20px;
    width: 227px;
}
.login-button{
    width: 160px;
    margin: 20px 0px 20px 0px;
    cursor:pointer;
    color: #fff;
    background-color: #6c757d;
    border: 0px;
    height: 31px;
}
.register-input{
    color: #495057;
    background-color: #fff;
    background-clip: padding-box;
    border: 1px solid #ced4da;
    height: 21px;
    padding: 4px 8px;
    width: 172px;
}
.panel-title{
    font-size: 20px;
    height: 60px;
    line-height: 60px;
    margin-left: 20px;
    font-weight: normal;
}
.panel-tool{
    margin-right: 10px;
}
.l-btn-left{
    margin-top: 4.5px;
}
.l-btn-text{
    font-size: 16px;
}
.nav_over .nav-link:hover{
    color: #fff;
}