* {
    margin: 5px;
    box-sizing: border-box;
}

body {
    margin-left: 220px;
    background-color: white;
    color: #333;
    font-family: Arial, Helvetica, sans-serif;
}

header img {
    width: 160px;
    height: auto;
}

nav a:hover {
    transform: scale(1.15);
}

div {
    background-color: white;
    padding: 25px;
}

.introduction {
    font-size: 18px;
    line-height: 1.7;
}

h1, h2 {
    color: black;
}

img {
    border: 3px solid black;
}

#site-footer {
    background-color: #222;
    color: white;
    text-align: center;
    font-size: 12px;
    padding: 5px;
}

.movie-poster {
display: none;
width: 300px;
height: auto;
}

.movie-poster.show {
display: block;
}