.upbtn {
    opacity: 0.8;
    z-index: 9999;
    width: 50px;
    height: 50px;
    position: fixed;
    bottom: -80px;
    left: 20px;
    cursor: pointer;
    border:3px solid hsl(0, 0%, 100%);
    transition: all .7s ease-in-out;
    background-position: center center;
    background-repeat: no-repeat;
    background-color: #ee930b;
    background-image: url(data:image/svg+xml;utf8;base64,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)
}
.upbtn:hover {
    opacity: 1;
    background-color: #fc9905;
}