@import url('https://fonts.googleapis.com/css?Muli&display=swap');
* {
    box-sizing: border-box;
}
body {
    background-image: url("./duke.jpg");
    background-position: center;
    font-family: 'Muli', sans-serif;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    text-align: center;
    height: 100vh; 
    
    margin: 0;
}

.btn-group {
    background-color: rgb(50, 50, 50);
    opacity: 0.8;
    padding: 30px 40px;
    margin-bottom: 10px;
    padding-bottom: 20px;
}

.btn {
    background-color: rgb(17, 150, 143);
    border-radius: 5px;
    border: none;
    color: #fff;
    margin: 1rem;
    padding: 1.5rem 3rem;
    font-size: 1.2rem;
    font-family: inherit;
    cursor: pointer;
}
.btn:hover {
    opacity: 0.9;
}
.btn:focus {
    outline: none;
}

.btn-group button {
  background-color: #04AA6D; /* Green background */
  border: 1px solid green; /* Green border */
  color: white; /* White text */
  padding: 10px 24px; /* Some padding */
  cursor: pointer; /* Pointer/hand icon */
  display: flex;
  align-items: center;
    justify-content: center;
}

.btn-group button:not(:last-child) {
  border-right: none; /* Prevent double borders */
}

/* Clear floats (clearfix hack) */
.btn-group:after {
  content: "";
  clear: both;
  display: table;
}

/* Add a background color on hover */
.btn-group button:hover {
  background-color: #3e8e41;
}