body {
background-color:#EBEBEB;
}

h1 {
text-align:center;
}

a:link {
color:blue;
text-align:center;
text-decoration:none;
}

a:visited {
color:red;
text-align:center;
text-decoration:none;
}

* {
    font-family:-apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

.btn {
    transition: 1s;
    border-radius: 7px;
    color: white;
    background-color: royalblue;
    width: auto;
    height: auto;
}

.btn:hover {
    transition: 1s;
    border-radius: 7px;
    color: white;
    background-color: royalblue;
    font-size: 17;
}