html {
    background: lightgoldenrodyellow;
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    font-family: Neucha, setofont, sans-serif;
}

body {
    width: 100%;
    min-height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    margin: 0;
    background: rgba(255, 255, 255, .25);
}

.to-top {
    opacity: 1;
    display: inline-block;
    padding: 1em;
    position: fixed;
    bottom: 1em;
    right: 1em
}
.to-top .paper-btn {
    padding: .6em 1em;
    background: #fff;
    border-top-left-radius: 185px 160px;
    border-top-right-radius: 200px 195px;
    border-bottom-right-radius: 160px 195px;
    border-bottom-left-radius: 185px 190px
}
.demo-title:hover + .to-top {
    opacity: 0
}

@font-face{
	font-family: 'setofont';
	src: url('./font/setofont.ttf');
}