Defaulting styleSelectedText to false if on a mobile device

src/js/simplemde.js

@@ -1492,7 +1492,7 @@ SimpleMDE.prototype.render = function(el) {
 		lineWrapping: (options.lineWrapping === false) ? false : true,
 		allowDropFileTypes: ["text/plain"],
 		placeholder: options.placeholder || el.getAttribute("placeholder") || "",
-		styleSelectedText: (options.styleSelectedText != undefined) ? options.styleSelectedText : true
+		styleSelectedText: (options.styleSelectedText != undefined) ? options.styleSelectedText : !isMobile(),
 	});
 
 	if(options.forceSync === true) {
@@ -2025,4 +2025,4 @@ SimpleMDE.prototype.toTextArea = function() {
 	}
 };
 
-module.exports = SimpleMDE;
+module.exports = SimpleMDE;