*{
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    font-size: large;
    
margin: 0;
padding: 0;
box-sizing: border-box;
}

body{
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column
}
a{
    color: blue;
}
a:visited {
    color: brown; 
}
hr{
    height: 3px;
    background-color: red;
}