.nav-item {
    margin-right: 15px;
    font-size: 1.2rem;
    font-weight: 600;
}

.nav-item a:hover{
    color:rgb(250, 250, 243) !important;
}
.nav-item a:active{
    color:rgb(250, 250, 243) !important;
}

.thumbnail {
    display: block;
    padding: 4px;
    margin-bottom: 20px;
    line-height: 1.42857143;
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 4px;
    -webkit-transition: border 0.2s ease-in-out;
    transition: border 0.2s ease-in-out;
}
img {
    vertical-align: middle;
}