.nav_header{
    background-color: #50bf77;
    color: white;
    font-weight: bold;
    font-size: 15px;
}

.nav-active-header{
    background-color: #0ea451;
    color: white;
    font-weight: bold;

}

.nav-item img{
    height: 20px;
    width: 20px;
    margin-right: 3px;
    margin-top: -3px;
}

.centered{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}