diff --git a/css/style.css b/css/style.css
index 20b5581..549937f 100644
--- a/css/style.css
+++ b/css/style.css
@@ -1,14 +1,63 @@
-body
+/* http://meyerweb.com/eric/tools/css/reset/
+   v2.0 | 20110126
+   License: none (public domain)
+*/
+html, body, div, span, applet, object, iframe,
+h1, h2, h3, h4, h5, h6, p, blockquote, pre,
+a, abbr, acronym, address, big, cite, code,
+del, dfn, em, img, ins, kbd, q, s, samp,
+small, strike, strong, sub, sup, tt, var,
+b, u, i, center,
+dl, dt, dd, ol, ul, li,
+fieldset, form, label, legend,
+table, caption, tbody, tfoot, thead, tr, th, td,
+article, aside, canvas, details, embed,
+figure, figcaption, footer, header, hgroup,
+menu, nav, output, ruby, section, summary,
+time, mark, audio, video {
+	margin: 0;
+	padding: 0;
+	border: 0;
+	font-size: 100%;
+	font: inherit;
+	vertical-align: baseline;
+}
+/* HTML5 display-role reset for older browsers */
+article, aside, details, figcaption, figure,
+footer, header, hgroup, menu, nav, section {
+	display: block;
+}
+body {
+	line-height: 1;
+}
+ol, ul {
+	list-style: none;
+}
+blockquote, q {
+	quotes: none;
+}
+blockquote:before, blockquote:after,
+q:before, q:after {
+	content: '';
+	content: none;
+}
+table {
+	border-collapse: collapse;
+	border-spacing: 0;
+}
+/* end of CSS reset code */
+
+body {
   font-size: 14px;
 }
 
 nav {
-  background color: yellow;
+  background-color: yellow;
   height: 100px;
   margin-top: -10px;
   position: fixed;
   width: 100%;
-
+}
 
 section {
   margin: 0 auto;
@@ -16,13 +65,13 @@ section {
 }
 
 h1 {
-  font-family sans-serif;
+  font-family: sans-serif;
   font-size: 2em;
 }
 
 .example, h3 {
   padding-top: 30px;
-  text-align center
+  text-align: center;
 }
 
 h3 {
@@ -32,5 +81,14 @@ h3 {
 .element {
   background-color: green;
   height: 100px;
-  margin 10px 0;
+  margin: 10px 0;
   width: 100%;
+}
+
+/* to differentiate last 3 div elements */
+.element1 {
+  background-color: blue;
+  height: 100px;
+  margin: 10px 0;
+  width: 100%;
+}
diff --git a/index.html b/index.html
index 8848434..ca6a4a4 100644
--- a/index.html
+++ b/index.html
@@ -28,15 +28,15 @@ <h3>This is text for a div element</h3>
       <div class="element">
         <h3>This is text for a div element</h3>
       </div>
-      <div class="element">
+      <div class="element1">
         <h3>This is text for a div element</h3>
       </div>
-      <div class="element">
+      <div class="element1">
         <h3>This is text for a div element</h3>
       </div>
-      <div class="element">
+      <div class="element1">
         <h3>This is text for a div element</h3>
       </div>
     </section>
   </body>
-</html>
+</html> 
diff --git a/style.css b/style.css
new file mode 100644
index 0000000..549937f
--- /dev/null
+++ b/style.css
@@ -0,0 +1,94 @@
+/* http://meyerweb.com/eric/tools/css/reset/
+   v2.0 | 20110126
+   License: none (public domain)
+*/
+html, body, div, span, applet, object, iframe,
+h1, h2, h3, h4, h5, h6, p, blockquote, pre,
+a, abbr, acronym, address, big, cite, code,
+del, dfn, em, img, ins, kbd, q, s, samp,
+small, strike, strong, sub, sup, tt, var,
+b, u, i, center,
+dl, dt, dd, ol, ul, li,
+fieldset, form, label, legend,
+table, caption, tbody, tfoot, thead, tr, th, td,
+article, aside, canvas, details, embed,
+figure, figcaption, footer, header, hgroup,
+menu, nav, output, ruby, section, summary,
+time, mark, audio, video {
+	margin: 0;
+	padding: 0;
+	border: 0;
+	font-size: 100%;
+	font: inherit;
+	vertical-align: baseline;
+}
+/* HTML5 display-role reset for older browsers */
+article, aside, details, figcaption, figure,
+footer, header, hgroup, menu, nav, section {
+	display: block;
+}
+body {
+	line-height: 1;
+}
+ol, ul {
+	list-style: none;
+}
+blockquote, q {
+	quotes: none;
+}
+blockquote:before, blockquote:after,
+q:before, q:after {
+	content: '';
+	content: none;
+}
+table {
+	border-collapse: collapse;
+	border-spacing: 0;
+}
+/* end of CSS reset code */
+
+body {
+  font-size: 14px;
+}
+
+nav {
+  background-color: yellow;
+  height: 100px;
+  margin-top: -10px;
+  position: fixed;
+  width: 100%;
+}
+
+section {
+  margin: 0 auto;
+  width: 60%;
+}
+
+h1 {
+  font-family: sans-serif;
+  font-size: 2em;
+}
+
+.example, h3 {
+  padding-top: 30px;
+  text-align: center;
+}
+
+h3 {
+  font-size: 1.3em;
+}
+
+.element {
+  background-color: green;
+  height: 100px;
+  margin: 10px 0;
+  width: 100%;
+}
+
+/* to differentiate last 3 div elements */
+.element1 {
+  background-color: blue;
+  height: 100px;
+  margin: 10px 0;
+  width: 100%;
+}