diff --git a/README.md b/README.md
index 1dff27d..54397aa 100644
--- a/README.md
+++ b/README.md
@@ -7,14 +7,11 @@ Reference:  https://codepen.io/wesbos/pen/KggoOo
 
 Usage:
 
-intallation:
-npm install placeholder-shown-polyfill
-
 HTML:
-<input type="text" placeholder="First Name">
+`<input type="text" placeholder="First Name">`
 
 CSS:
-
+```
 input {
   border: 5px solid red;
   outline: 0;
@@ -23,6 +20,16 @@ input {
   margin: 50px;
 }
 
-input:placeholder-shown, input.placeholder-shown {
+input:-moz-placeholder {
+  border-color: green;
+}
+input:-ms-input-placeholder {
+  border-color: green;
+}
+input.placeholder-shown {
+  border-color: green;
+}
+input:placeholder-shown {
   border-color: green;
 }
+```
diff --git a/placeholder-shown-polyfill.min.js b/placeholder-shown-polyfill.min.js
new file mode 100644
index 0000000..ebb0ff2
--- /dev/null
+++ b/placeholder-shown-polyfill.min.js
@@ -0,0 +1,5 @@
+/*!
+* Polyfill for pseudo selector :placeholder-shown
+* Author: Subash Selvaraj (github userid:sesubash) & enhanced by Kravimir
+*/
+(function(){var d=document,u=null,o={init:function(){var p="placeholder",h=d.querySelector("head"),t=d.createElement("input"),s=d.createElement("style"),r="{padding-top:183px}";t.setAttribute("id","PhSTf");t.setAttribute(p,"\x20");s.textContent="#PhSTf{position:absolute;visibility:hidden}#PhSTf:"+p+"-shown"+r+"#PhSTf:-ms-input-"+p+""+r+"#PhSTf:-moz-"+p+r;h.appendChild(s);t=d.body.appendChild(t);var y=window.getComputedStyle(t,u).paddingTop;d.body.removeChild(t);h.removeChild(s);if(y==="183px"){d.documentElement.classList.add("placeholderPseudo");return}d.querySelectorAll("input["+p+"],textarea["+p+"]").forEach(function(i){if(i.getAttribute(p)!="")o.update.call(i);for(var n=0,a=["blur","keyup","input"];n<a.length;n++)i.addEventListener(a[n],o.update,u);})},update:function(){this.classList[this.value?"remove":"add"]("placeholder-shown");for(var l=this.nextSibling;l;l=l.nextSibling)if(l.nodeType==1&&l.nodeName.toLowerCase()=='label')l.classList.toggle('androidFix');}};if(/^[ci]|d$/.test(d.readyState||"")){o.init()}else{d.addEventListener("DOMContentLoaded",o.init,u)}window.placeholderShownPolyfill=o;d.documentElement.classList.add("phsJS")})();
diff --git a/src/placeholder-shown-polyfill.js b/src/placeholder-shown-polyfill.js
index 07445b5..1a5cdfa 100644
--- a/src/placeholder-shown-polyfill.js
+++ b/src/placeholder-shown-polyfill.js
@@ -1,33 +1,52 @@
-//==================================================
-// Polyfill for pseudo selector :placeholder-shown
-// Author: Subash Selvaraj(github userid:sesubash)
-//==================================================
+/*!===============================================
+* Polyfill for pseudo selector :placeholder-shown
+* Author: Subash Selvaraj (github userid:sesubash) & enhanced by Kravimir
+*================================================*/
 (function(){
+	var d=document,placeholderShownPolyfill = {
+		init: function() {
+			var self = placeholderShownPolyfill,
+				p = "placeholder",
+				head = d.querySelector("head"),
+				fld = d.createElement("input"),
+				style = d.createElement("style"),
+				r = "{padding-top:183px}";
+			fld.setAttribute("id","PhSTf");
+			fld.setAttribute(p,"\x20");
+			style.textContent="#PhSTf{position:absolute;visibility:hidden}#PhSTf:"+
+				p+"-shown"+r+"#PhSTf:-ms-input-"+p+r+"#PhSTf:-moz-"+p+r;
+			head.appendChild(style);
+			fld=d.body.appendChild(fld);
+			var x=window.getComputedStyle(fld, null).paddingTop;
+			d.body.removeChild(fld);
+			head.removeChild(style);
+			if(x==="183px") {
+				d.documentElement.classList.add("placeholderPseudo");
+				return;
+			}
+			d.querySelectorAll("input["+p+"],textarea["+p+"]").forEach(function(el) {
+				if(el.getAttribute(p) != "")
+					self.update.call(el);
 
-  var placeholderShownPolyfill = {
-    init: function() {
-      var self = this;
-      document.querySelectorAll('[placeholder]').forEach(function(el) {
-        if(el.getAttribute('placeholder') != "")
-          self.updatePlaceholder.call(el);
+				for(var n=0,a=["blur","keyup","input","focus"];n<a.length;n++)
+					el.addEventListener(a[n], self.update, null);
+			});
+		},
+		update: function() {
+			this.classList[this.value ? "remove" : "add"]("placeholder-shown");
+			// fix for old Webkit browsers, including Android 4.x
+			for(var l=this.nextSibling;l;l=l.nextSibling) 
+				if(l.nodeType==1 && l.nodeName.toLowerCase()=="label") 
+					l.classList.toggle("androidFix");
+		}
+	};
 
-        el.addEventListener('change', self.updatePlaceholder);
-        el.addEventListener('keyup', self.updatePlaceholder);
-      });
-    },
-
-    updatePlaceholder: function() {
-      this.classList[this.value ? 'remove' : 'add']('placeholder-shown');
-    }
-
-  };
-
-  if (/^[c|i]|d$/.test(document.readyState || "")) {
-    placeholderShownPolyfill.init();
-  } else {
-    document.addEventListener("DOMContentLoaded", placeholderShownPolyfill.init());
-  }
-
-  window.placeholderShownPolyfill = placeholderShownPolyfill;
+	if (/^[ci]|d$/.test(d.readyState || "")) {
+		placeholderShownPolyfill.init();
+	} else {
+		d.addEventListener("DOMContentLoaded", placeholderShownPolyfill.init, null);
+	}
 
+	window.placeholderShownPolyfill = placeholderShownPolyfill;
+	d.documentElement.classList.add("phsJS");
 })();