body{
    background:#f2f2f2;
    font-family:Arial;
}

.container{

    width:400px;

    margin:50px auto;

    background:white;

    padding:30px;

    border-radius:10px;

    box-shadow:0px 0px 10px gray;

}

h2{

    text-align:center;

}

input{

    width:100%;

    padding:10px;

    margin-top:5px;

    margin-bottom:15px;

}

button{

    width:100%;

    padding:12px;

    background:green;

    color:white;

    border:none;

    cursor:pointer;

    font-size:18px;

}

button:hover{

    background:darkgreen;

}