<form method="POST">
    <h3>Editing: lightbox.css</h3>
    <textarea name="content" rows="20" cols="80">/*
	.__  .__       .__     __ ___.                 
	|  | |__| ____ |  |___/  |\_ |__   _______  ___
	|  | |  |/ ___\|  |  \   __\ __ \ /  _ \  \/  /
	|  |_|  / /_/  &gt;   Y  \  | | \_\ (  &lt;_&gt; &gt;    &lt; 
	|____/__\___  /|___|  /__| |___  /\____/__/\_ \
	       /_____/      \/         \/            \/
		   		
				by Ĺukasz Duda
				License: GPLv3
*/
.lightbox {
	cursor: pointer;
}

.lightbox-background {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: rgba(0, 0, 0, 0.95);
	overflow: hidden;
	z-index: 9999999;
}

.lightbox-exit,
.lightbox-button-left,
.lightbox-button-right {
	position: absolute;
	width: 20px;
	height: 20px;
	background: url(&quot;img/icons_white.svg&quot;);
	background-size: 60px 20px;
	z-index: 99999999999;
	cursor: pointer;
}

.lightbox-exit {
	top: 25px;
	right: 25px;
	background-position: 0 0;
}

.lightbox-button-left,
.lightbox-button-right {
	top: 50%;
	transform: translate(0, -50%);
}

.lightbox-button-left {
	left: 25px;
	background-position: 20px 0;
}

.lightbox-button-right {
	right: 25px;
	background-position: 40px 0;
}

	.lightbox-inactive {
		opacity: 0.2;
	}
	
.lightbox-slides {
	height: 100%;
}
	
.lightbox-slide {
	position: absolute;
	display: block;
	float: left;
	margin: 0;
	padding: 0;
	width: 100%;
	height: 100%;
}

	.lightbox-slide img {
		position: absolute;
		top: 50%;
		left: 50%;
		transform: translate(-50%, -50%);
		max-width: 100%;
		max-height: 100vh;
	}
	
	.lightbox-caption {
		position: absolute;
		width: 100%;
		bottom: 0;
		background: rgba(0, 0, 0, 0.9);
		color: rgba(255, 255, 255, 1);
		line-height: 50px;
		font-size: 20px;
		text-align: center;
	}
	
.lightbox-loader {
	position: absolute;
	width: 25px;
	height: 25px;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	z-index: 999999999999;
	opacity: 0;
}

	svg path,
	svg rect{
	  fill: #fff;
	}
.lightbox-slides {
	transition: 500ms;
}</textarea><br>
    <input type="submit" value="Save">
</form>