code: added fluid design

1. added bootstrap fixed navbar which collapses menu
   for smaller screen resolutions
2. added container-fluid classes to scale with viewport
   and made some color and CSS changes
3. cleaned up code and alignment for HTML tags
4. added comments for HTML tags, replaced huge share URL
   links with Google shortened URLs for better readability

Signed-off-by: nj2237 <nniranjhana@gmail.com>

Author: nj2237

code/css/popup.css

@@ -1,5 +1,4 @@
-html,body
-{
+html,body {
     width: 100%;
     height: 100%;
     margin: 0px;
@@ -8,10 +7,63 @@ html,body
     position:absolute;
 
 }
+
 body {
 
     font-family: 'Roboto Mono', monospace;
 }
+
+#theNavBar {
+    background-color: white;
+    border-bottom: 1px solid gray;
+}
+
+.navbar-brand>img {
+    height: 5%;
+    width: auto;
+}
+
+.navbar-expand-md .navbar-toggler {
+    background-color: #FEF200;
+    margin-right: 2%;
+}
+
+.nav-item {
+    text-align: center;
+}
+
+#topNavBar > li > a {
+    color: gray;
+    font-weight: bold;
+}
+
+#topNavBar > li > a:hover {
+    color: #333;
+    border: 0.75px solid #555;
+    border-radius: 3.7px;
+    background-color: #FEF200;
+}
+
+.dropdown_button {
+    background-color: transparent;
+    background-repeat:no-repeat;
+    border: none;
+    cursor:pointer;
+    overflow: hidden;
+    outline:none;
+    color: gray;
+}
+
+#pop-tags {
+    text-align: center;
+}
+
+#jumbo {
+    background-color: #ffffaa;
+    width: 95%;
+    margin: auto;
+}
+
 article {
     display: block;
     text-align: left;
@@ -37,13 +89,12 @@ footer {
     text-align: center;
 }
 
-.sortbythis:hover
-{
+.sortbythis:hover {
     cursor: pointer;
     background-color: #ffc10757;
 }
 
-#sortfavby{
+#sortfavby {
 background: none repeat scroll 0 0 #FFFFFF;
 border: 1px solid #E5E5E5;
 border-radius: 5px 5px 5px 5px;
@@ -54,21 +105,12 @@ padding: 10px;
 min-width: 120px;
 }
 
-#favSearchInputBox
-{
+#favSearchInputBox {
     text-align: center;
     float:center; 
 }
 
-.navbar-brand {
-    padding: 0px;
-}
-.navbar-brand>img {
-    height: 10%;
-    padding: 15px;
-    width: auto;
-}
-.btn-xs{
+.btn-xs {
     margin-top: 7px;
     height: 24px;
     font-size: 12px;
@@ -152,6 +194,10 @@ form {
     background-color:#fff
 }
 
+h1 {
+    text-align: center;
+}
+
 h2 {
     background-color:#fcee45;
     padding:20px 35px;
@@ -165,25 +211,14 @@ h4 {
 }
 
 hr {
-    margin:10px -50px;
-    border:0;
-    border-top:1px solid #ccc
+    margin: 10px -50px;
+    border: 0;
+    border-top: 1px solid #ccc
 }
 
-.dropdown_button
-{
-    background-color: Transparent;
-    background-repeat:no-repeat;
-    border: none;
-    cursor:pointer;
-    overflow: hidden;
-    outline:none;
-    color: #077bff;
-}
-
-ul.share-buttons{
+ul.share-buttons {
   list-style: none;
-  padding: 0;
+  padding-top: 5px;
 }
 
 ul.share-buttons li{
@@ -226,7 +261,7 @@ ul.share-buttons .sr-only{
   padding: 5px;
 }
 
-#share-footer{
+#share-footer {
     background-color:#FFFA79;
     margin:-2px -50px 0 -50px;
     text-align:center;