#define WEBPAGE_STRING " <!doctype html><title>Firmware Update</title><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\"><link rel=\"stylesheet\" href=\"https://www.w3schools.com/w3css/4/w3.css\"><style>	.slider {	  -webkit-appearance: none;	  width: 100%%;	  height: 15px;	  border-radius: 5px;   	  background: #d3d3d3;	  outline: none;	  opacity: 0.7;	  -webkit-transition: .2s;	  transition: opacity .2s;	}	.slider::-webkit-slider-thumb {	  -webkit-appearance: none;	  appearance: none;	  width: 25px;	  height: 25px;	  border-radius: 50%%; 	  background: #4CAF50;	  cursor: pointer;	}	.slider::-moz-range-thumb {	  width: 25px;	  height: 25px;	  border-radius: 50%%;	  background: #4CAF50;	  cursor: pointer;	}</style><body>	<header class=\"w3-container w3-teal\">		<h1>Colourful Sign</h1>	</header>	<div class=\"w3-container\">		<form>			<p><button class=\"w3-button w3-block w3-teal w3-center\">Update Settings</button></p>			<p><hr></p>			<p><b>Dummy: %d</b>			</p>			<p><hr></p>		</form>		<p><i>Flash file system has approximately %d Kb free</i></p>		<hr>		<p>			Upload new game file (should be 768Kb and start with LGV_DATA):			<form id=\"gamebanner\" enctype=\"multipart/form-data\" method=\"post\" action=\"/game.html\">				<input id=\"gameupload\" name=\"gamefile\" type=\"file\"/>				<input type=\"submit\" value=\"Upload\" id=\"submit\"/>			</form>		</p>		<hr>		<p> Current firmware version 1.1 (2020/8/30) </p>		<p>			Upload new .bin file:			<form id=\"uploadbanner\" enctype=\"multipart/form-data\" method=\"post\" action=\"#\">				<input id=\"fileupload\" name=\"myfile\" type=\"file\"/>				<input type=\"submit\" value=\"Update\" id=\"submit\"/>			</form>		</p>		<p> <b>Do not remove power while updating</b> </p>	</div></body>  "

