diff --git a/main/css/base.css b/main/css/base.css
index ab30549be4..2a3d2b6249 100644
--- a/main/css/base.css
+++ b/main/css/base.css
@@ -59,6 +59,219 @@ form .formw input {
 /* end chamilo forms fixes */
 
 
+/* media queries responsive */
+
+/* Responsive Docs
+-------------------------------------------------- */
+@media (max-width: 480px) {
+
+  /* Reduce padding above jumbotron */
+  body {
+    padding-top: 70px;
+  }
+
+  /* Change up some type stuff */
+  h2 {
+    margin-top: 27px;
+  }
+  h2 small {
+    display: block;
+    line-height: 18px;
+  }
+  h3 {
+    margin-top: 18px;
+  }
+
+  /* Adjust the jumbotron */
+  .jumbotron h1,
+  .jumbotron p {
+    text-align: center;
+    margin-right: 0;
+  }
+  .jumbotron h1 {
+    font-size: 45px;
+    margin-right: 0;
+  }
+  .jumbotron p {
+    margin-right: 0;
+    margin-left: 0;
+    font-size: 18px;
+    line-height: 24px;
+  }
+  .jumbotron .btn {
+    display: block;
+    font-size: 18px;
+    padding: 10px 14px;
+    margin: 0 auto 10px;
+  }
+  /* Masthead (home page jumbotron) */
+  .masthead {
+    padding-top: 0;
+  }
+
+  /* Don't space out quick links so much */
+  .quick-links {
+    margin: 40px 0 0;
+  }
+  /* hide the bullets on mobile since our horizontal space is limited */
+  .quick-links .divider {
+    display: none;
+  }
+
+  /* center example sites */
+  .example-sites {
+    margin-left: 0;
+  }
+  .example-sites > li {
+    float: none;
+    display: block;
+    max-width: 280px;
+    margin: 0 auto 18px;
+    text-align: center;
+  }
+  .example-sites .thumbnail > img {
+    max-width: 270px;
+  }
+
+  table code {
+    white-space: normal;
+    word-wrap: break-word;
+    word-break: break-all;
+  }
+
+  /* Modal example */
+  .modal-example .modal {
+    position: relative;
+    top: auto;
+    right: auto;
+    bottom: auto;
+    left: auto;
+  }
+
+}
+
+
+@media (max-width: 768px) {
+
+  /* Remove any padding from the body */
+  body {
+    padding-top: 0;
+  }
+
+  /* Jumbotron buttons */
+  .jumbotron .btn {
+    margin-bottom: 10px;
+  }
+
+  /* Subnav */
+  .subnav {
+    position: static;
+    top: auto;
+    z-index: auto;
+    width: auto;
+    height: auto;
+    background: #fff; /* whole background property since we use a background-image for gradient */
+    -webkit-box-shadow: none;
+       -moz-box-shadow: none;
+            box-shadow: none;
+  }
+  .subnav .nav > li {
+    float: none;
+  }
+  .subnav .nav > li > a {
+    border: 0;
+  }
+  .subnav .nav > li + li > a {
+    border-top: 1px solid #e5e5e5;
+  }
+  .subnav .nav > li:first-child > a,
+  .subnav .nav > li:first-child > a:hover {
+      -webkit-border-radius: 4px 4px 0 0;
+         -moz-border-radius: 4px 4px 0 0;
+              border-radius: 4px 4px 0 0;
+  }
+
+  /* Popovers */
+  .large-bird {
+    display: none;
+  }
+  .popover-well .popover-wrapper {
+    margin-left: 0;
+  }
+
+  /* Space out the show-grid examples */
+  .show-grid [class*="span"] {
+    margin-bottom: 5px;
+  }
+
+  /* Unfloat the back to top link in footer */
+  .footer .pull-right {
+    float: none;
+  }
+  .footer p {
+    margin-bottom: 9px;
+  }
+
+}
+
+
+@media (min-width: 480px) and (max-width: 768px) {
+
+  /* Scale down the jumbotron content */
+  .jumbotron h1 {
+    font-size: 54px;
+  }
+  .jumbotron p {
+    margin-right: 0;
+    margin-left: 0;
+  }
+
+}
+
+
+@media (min-width: 768px) and (max-width: 980px) {
+
+  /* Remove any padding from the body */
+  body {
+    padding-top: 0;
+  }
+
+  /* Scale down the jumbotron content */
+  .jumbotron h1 {
+    font-size: 72px;
+  }
+
+}
+
+
+@media (max-width: 980px) {
+
+  /* Unfloat brand */
+  .navbar-fixed-top .brand {
+    float: left;
+    margin-left: 0;
+    padding-left: 10px;
+    padding-right: 10px;
+  }
+
+  /* Inline-block quick links for more spacing */
+  .quick-links li {
+    display: inline-block;
+    margin: 5px;
+  }
+
+}
+
+
+/* LARGE DESKTOP SCREENS */
+@media (min-width: 1210px) {
+
+  /* Update subnav container */
+  .subnav-fixed .nav {
+    width: 1168px; /* 2px less to account for left/right borders being removed when in fixed mode */
+  }
+
+}
 
 
 * {