style.css

html {
    background-color: #C0CEEA;
    color: #253A66;

}
body {
    font-size: 20px;
    margin-left: 50px;
    padding: 10px;

}

h1 {
    margin-bottom: 100px;
    margin-left: 400px;
    margin-right: 400px;
    font-size: 90px;
    padding: 15px;
    border: 10px dotted #253A66;
    text-align: center;
}
h2 {
    margin-bottom: 50px;
    font-size: 50px;
    text-align: left;
    margin-left: 50px;
}

button {
    background-color: #4167B3;
    padding:15px;
    margin-left: 100px;
    margin-right: 100px;
    border-radius: 15px;
    border: #253A66 3px solid; 
    margin-top: 50px;
    text-align: center;
}

a {
    text-decoration: none;
    color: #C0CEEA;
    font-size: 16px;
    font-weight: bold;
}

button:hover {
    box-shadow: -3px 2px 59px 33px rgba(37,58,102,0.79);
-webkit-box-shadow: -3px 2px 59px 33px rgba(37,58,102,0.79);
-moz-box-shadow: -3px 2px 59px 33px rgba(37,58,102,0.79);
}