#scrolltop {
    display: none; /* Hidden by default */
    position: fixed; /* Fixed/sticky position */
    bottom: 25px; /* Place the button at the bottom of the page */
    right: 10px; /* Place the button 30px from the right */
    z-index: 99; /* Make sure it does not overlap */
    border: none; /* Remove borders */
    outline: 1px; /* Remove outline */
    background-color: lightsteelblue; /* Set a background color */
    color: black; /* Text color */
    cursor: pointer; /* Add a mouse pointer on hover */
    padding: 10px; /* Some padding */
    border-radius: 8px; /* Rounded corners */
    border: 2px;
    border-color: red;
    border-style: solid;
    font-size: 18px;
}

#scrolltop:hover {
    background-color: cornflowerblue; /* Add a dark-grey background on hover */
}