.button {
    background-color: #4CAF50; /* Green */
    border: none;
    color: white;
    padding: 16px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    -webkit-transition-duration: 0.4s; /* Safari */
    transition-duration: 0.4s;
    cursor: pointer;
}
.buttonRed {
    background-color: #f44336;
    color: white;
    border: 2px solid #f44336;
}
.buttonRed:hover {
    background-color: #a52d24;
    border: 2px solid #751f18;
}
#footer {
    /* background-color: #000000; */
    padding: 10px;
    position:absolute;
    bottom:0;
    width:100%;
    height:5%;
}
sup {
	color: red;
}