.contentNav{
    width: 100%;
    height: 60px;
    background-color: #fd3234;
    display: -webkit-flex; /* Safari */
    display: flex;
    flex: row;
}

.contentNav a{
    font-size: 18px;
    color: #fff;
    flex-grow: 1;
    text-align: center;
    margin-top: auto;
    margin-bottom: auto;
    
}