body{
    
    background-color: cornflowerblue;
    color:white;
    font-size: 1.5em;
    font-family: cursive;
}

#btn input{
width:100px;
margin: 0 10px;
padding: 10px;
font-size: 1en;
}

#kurasu{
    width: 100px;
    margin: 0 10px;
    padding: 10px;
    font-size: 1en;
}