@import url('https://fonts.googleapis.com/css2?family=Roboto&display=swap');
 
 *{
box-sizing: border-box;
margin: 0;
padding: 0;
}
body{
    margin: 0;
    padding: 0;
    font-size: 100%;
    background:#eee;
    font-family: Roboto;
    
}
header{
    background: #000;
}
header h1{
    color: #fff;
    font-family: Tahoma;
    font-size: calc(7vw -3px);
}
main{
    text-align: center;
    display: flex;
}
article{
    background:#fff;
    width:40%;
    min-width: 200px;
    height:20vh;
    display: block;
    margin:0.7em;
    padding: 1em;
}
article h3{
    font-size: 150%;
}
article a{
    text-decoration: none;
    color:#999;
}
article  a  span{
    color:#222;
}
article p{
    font-size: 80%;
}
footer{
    font-size:70%;
    
}