body{
    margin-top: 100px;
     margin: 10px; 
    background-color: black
}
.head{
    background-color: black;
    color: blue;
    width: 150px;
    
}
h1{
    display: inline-block;
    background-color: white;
    width: 100px;
color: black;
    
}
button{
    margin: 3px;
    width: 110px;
    height: 40px;
    color: black;
    font-size: 20px;
    font-style: bold;
    border-radius: 10px;
    box-shadow: 0 0 1px 1px grey;
}
button:hover {
    background-color: blue;
  }