concrete-label/style.css

html,
body {
	margin: 0;
	font-family: Arial, Helvetica, sans-serif;
	width: 100%;
	overflow: hidden;
}

#container {
	width: 100%;
	height: 100vh;
	background-color: #fcc;
}

#editor {
	position: absolute;
	display: none;
	border: 1px solid white;
	opacity: 0.5;
	width: 0;
	height: 0;
	z-index: 100;
}

#editor.can-draw {
	opacity: 1;
}

#editor.show-editor {
	display: block;
}

.label {
	position: absolute;
	background-color: tomato;
	box-shadow: 0px 0px 8px 0px rgba(0, 0, 0, 0.2);

	overflow: hidden;
}

.label.temporary {
	background: none;
	border: 1px dashed tomato;
	box-shadow: none;
}

.label.temporary .label--number,
.label.temporary .label--close {
	display: none;
}

.label--number {
	display: inline-block;
	margin: 0;
	padding: 0 4px;

	user-select: none;

	background-color: white;
}

.label--close {
	position: absolute;
	right: 0;

	border: none;

	padding: 0 4px;

	font-size: 1rem;

	background: none;
	color: white;

	cursor: pointer;
}
.label--text {
	margin: 1ch 0;
	padding: 0 1ch;

	overflow: hidden;
	width: 100%;
	height: 100%;
	text-overflow: ellipsis;
}

.text-input {
	display: none;
	position: absolute;
	z-index: 200;
	width: 100%;
	height: 100vh;

	justify-content: center;
	align-items: center;

	background-color: rgba(255, 99, 71, 0.95);
}

.text-input.visible {
	display: flex;
}

.modal {
	padding: 64px;
}

.modal input {
	font-size: 1.5rem;
	background: none;
	border: none;
	color: white;
	border-bottom: 1px solid white;
}

.modal input:focus {
	outline: none;
	background-color: rgba(255, 255, 255, 0.25);
}

.text-input button {
	color: white;
	font-weight: bold;
	background: none;
	border: none;
	cursor: pointer;
	font-size: 1.5rem;
}

#cancel {
	font-weight: normal;
}

.background-container {
	position: absolute;
	left: 50%;
	top: 50%;
	transform: translate(-50%, -50%);
	display: flex;
	flex-direction: column;
}

.background-container img {
	display: none;
	max-width: 70w;
	max-height: 70vh;
	object-fit: contain;
	user-select: none;
	pointer-events: none;
}

.background-container img.visible {
	display: initial;
}

.hidden {
	display: none;
}

.info {
	position: absolute;
	right: 0;
	bottom: 0;
	top: 0;
	z-index: 50;

	padding: 24px;
	margin: 0;

	width: 25%;
	line-height: 1.6;

	background-color: #111;
	color: white;

	transform: translateX(100%);
	transition: transform 0.4s ease-out;
}

.info.active {
	transform: translateX(0);
	transition: transform 0.4s ease-in;
}

.info .title {
	margin: 0;
}

#show-info {
	position: absolute;
	top: 24px;
	right: 24px;
	z-index: 100;

	background: none;

	display: inline-block;
	width: 24px;
	height: 24px;
	border-radius: 50%;

	border: 1px solid currentColor;

	color: tomato;

	cursor: pointer;
}

#show-info:hover {
	border: 1px solid tomato;
	background-color: tomato;
	color: white;
}

#show-info.active {
	color: white;
}

#show-info:hover.active {
	border: 1px solid white;
	background-color: white;
	color: #111;
}