body{
font-family: Arial;
margin:40px;
background:#f5f5f5;
}

h1{
text-align:center;
}

input{
display:block;
margin:5px 0;
padding:8px;
width:250px;
}

button{
padding:6px 10px;
margin:5px 0;
cursor:pointer;
}

ul{
background:white;
padding:15px;
border-radius:5px;
}

li{
margin:5px 0;
}