h1, a, h2, h3
{
    text-align: center;
    font-family: Arial, Helvetica, sans-serif;
}
a 
{
    display: block;
    
}
.button {
    display: block;
    width: 115px;
    height: 25px;
    background: #4E9CAF;
    padding: 40px;
    text-align: center;
    border-radius: 5px;
    color: white;
    font-weight: bold;
    line-height: 25px;
    margin: auto;
    margin-bottom: 20px;
}