body {
background-image: url('https://cdn.pixabay.com/photo/2017/10/14/20/41/paper-2851799_960_720.jpg');
background-repeat: no-repeat;
background-size: cover;
text-align: center;
font-family: Arial, sans-serif;
}
html {
height: 100%
}
h1 {
  font-family: Arial, 'Russo One', sans-serif;
  font-size: 3em;
  color: Green;
}

button {
margin-left: 25px; border-radius: 6px; font-family: Verdana, sans-serif; font-size: 25px;
color: black;
text-decoration: none;
cursor: pointer;
background-color: #ddd;
border: 3px solid green; height: 50px;
width: 200px;
}
button:hover {
opacity: .75;
}
a {
color: #000;
}
#excuses {
font-size: 2.5em;
color: red;
font-weight: bold;
margin-top: 20px;
font-family: Verdana, monospace;
}
#attrib {
position: absolute;
bottom: 5%;
left: 5%;
font-family: monospace;
font-size: 1em;
}