#info{
    text-align:center;
}

#input{
    text-align:center;            
}

li{
    list-style:none;
}

header {
    background-color: #333;
    color: #fff;
    padding: 10px;
    text-align: center;
}

header h1 {
    font-size: 24px;
    margin: 0;
}

header nav ul {
    list-style: none;
    padding: 0;
}

header nav li {
    display: inline;
    margin-right: 20px;
}

header nav a {
    color: #fff;
    text-decoration: none;
}

header nav a:hover {
    text-decoration: underline;
}

footer{
    background-color: #333;
    color: #fff;
    padding: 10px;
    text-align:center;
    font-size: 14px;          
}

.info-message {
    background-color: #e8f4f8;
    border-left: 4px solid #2196F3;
    padding: 10px;
    margin: 10px 0;
    color: #0d47a1;
    border-radius: 4px;
}

footer a {
    color: #fff;
    text-decoration: none;
    margin: 0 10px;
}

footer a:hover {
    text-decoration: underline;
}