.tag-lock {
    background-color: red;
    color: white;
    padding: 5px;
    border-radius: 5px;
}

.tag-unlock {
    background-color: green;
    color: white;
    padding: 5px;
    border-radius: 5px;
}

.course-thumbnail {
    max-width: 423px;
    max-height: 221px;
    object-fit: cover; 
    object-position: center; 
    overflow: hidden;
}