body {
    font-family: Arial, sans-serif;
    background-color: #fff;
    color: #000;
    text-align: center;
    margin: 0;
    padding: 0;
}
header {
    background-color: black;
    color: white;
    padding: 20px;
    font-size: 18px;
}
nav ul {
    list-style-type: none;
    padding: 0;
}
nav ul li {
    display: inline;
    margin: 0 15px;
}
nav ul li a {
    text-decoration: none;
    color: white;
    font-weight: bold;
}
.hero {
    background: url('background.jpg') no-repeat center center/cover;
    color: white;
    padding: 100px 20px;
    text-align: center;
}
button {
    background-color: #000;
    color: white;
    padding: 15px 30px;
    font-size: 18px;
    border: none;
    cursor: pointer;
    margin-top: 20px;
    border-radius: 5px;
}
.services-list details {
    background: #f8f8f8;
    padding: 10px;
    margin: 10px auto;
    width: 50%;
    border-radius: 5px;
}
footer {
    margin-top: 20px;
    padding: 10px;
    background-color: black;
    color: white;
}
a {
    color: black;
}