html,
body {
    height: 100%; 
    padding: 0;
    margin: 0;
    font-family: 'Roboto Condensed', sans-serif;
    font-size: 10pt;
    background-image: url("https://source.unsplash.com/1920x1080/?sexy&woman");
    background-attachment: fixed;
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
}

#random,
#random_full {
    background-attachment: fixed;
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    height: 100vh;
}
#random_full {
	opacity: 1;  /* 0 to hide until hover */
	transition: opacity .5s;
	background-size: contain;
	backdrop-filter: blur(20px);
	height: calc(100vh - 34px);
}

.row {
	display: flex;
	opacity: 1; /* 0 to hide until hover */
	transition: opacity .5s;
	height: 24px;
	flex-direction: row;
	justify-content: center;
	align-items: center;
	color: rgb(200 200 200);
	/* background-color: rgb(0 0 0 / 0.0); */
	backdrop-filter: blur(20px);
	padding-top: 5px;
	padding-bottom: 5px;
}
.row:hover {
	opacity: 1;
	backdrop-filter: blur(20px);
	background-color: rgb(0 0 0 / 0.3);
}
.row:hover + #random_full {
	opacity: 1;
}

.row div {
	padding-left: 10px;
	padding-right: 10px;
	filter: drop-shadow(0 0 0.1rem black);
}

.row div a {
	background: rgba(0,0,0,0);
	border: none;
	cursor: pointer;
	overflow: hidden;
	outline: none;
	filter: saturate(0);
	padding: 0;
	transition: filter .25s, transform .25s, font-size .25s, padding .25s;
}
.row div a:active {
	filter: saturate(0) drop-shadow(0 0 0.5rem white);
	transform: scale(0.5);
	font-size: 0.5em;
	padding: 0.7em;
}

.row div#title {
	font-family: 'Kanit', sans-serif;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
	max-width: 30vw;
}

.tooltip {
	font-size: 0.8em;
	visibility: hidden;
	background: rgba(0,0,0,0.8);
	color: rgba(0,0,0,1);
	text-align: center;
	padding: 5px 0;
	border-radius: 5px;
	position: absolute;
	z-index: 1;
	top: 100%;
	left: 50%;
}
.row div button:hover + .tooltip {
	visibility: visible;
}