.navbar li a {
    color: #000;
    text-decoration: none;
}
.navbar li a:hover {
    color: #ff0000;
}
.navbar {
    background-color: #ffffff;
    padding: 10px;
}
.navbar ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
}
.navbar li {
    display: inline;
    margin-right: 20px;
}
.navbar li:last-child {
    margin-right: 0;
}
.navbar li a.active {
    font-weight: bold;
}
.navbar li a.active:hover {
    color: #fff;
}

.btn {
    background-color: #4CAF50; /* Green */
    border: none;
    color: white;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    cursor: pointer;
}
.accordion-button {
    background-color: #f1f1f1;
    color: #000;
    padding: 10px;
    border: none;
    text-align: left;
    outline: none;
    font-size: 15px;
    font-weight: bold;
}