* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    scroll-behavior: smooth;
}

body {
    line-height: 1.5;
    background-color: #eee;
    color: #000;
}

span {
    font-weight: bold;
}

a {
    text-decoration: none;
    text-align: center;
}

nav ul,
aside ul {
    list-style-type: none;
}

nav a {
    background-color: darkgrey;
    color: #000;
}

a:hover {
    background-color: lightgray;
    color: #000;
}