fix: edit in github btn styles

Author: frankpagan

docs/index.html

@@ -166,7 +166,7 @@ <h2 class="padding:5px_0px">Demo</h2>
 				</div>
 			</div>
 		</div>
-		<button href="https://github.com/CoCreate-app/CoCreate-overlay-scroll/tree/master/docs/index.html?message=docs%3A%20describe%20your%20change..." target="_blank" class="position:fixed bottom:15px right:15px padding:15px background:dodgerblue grow-hover border-radius:50%">
+		<button href="https://github.com/CoCreate-app/CoCreate-overlay-scroll/tree/master/docs/index.html?message=docs%3A%20describe%20your%20change..." target="_blank" class="position:fixed bottom:15px right:15px padding:15px background:dodgerblue color:#fff font-size:1.5rem grow-hover border-radius:50% border-width:0 box-shadow:0px_2px_10px_0px_rgba(0,_0,_0,_0.4)">
 				<i class="fas fa-pencil-alt"></i>
 			</button>
 		</main>