diff --git a/node b/node
new file mode 100755
index 000000000..2c7c72ec1
Binary files /dev/null and b/node differ
diff --git a/npm b/npm
new file mode 120000
index 000000000..3c8e29961
--- /dev/null
+++ b/npm
@@ -0,0 +1 @@
+../lib/node_modules/npm/bin/npm-cli.js
\ No newline at end of file
diff --git a/npx b/npx
new file mode 120000
index 000000000..d224c2920
--- /dev/null
+++ b/npx
@@ -0,0 +1 @@
+../lib/node_modules/npm/bin/npx-cli.js
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 6ae37b88f..122f52ca6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,13 +5,13 @@
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-      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.5.tgz",
-      "integrity": "sha1-63d99gEXI6OxTopywIBcjoZ0a9I=",
+      "version": "1.3.7",
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-        "negotiator": "0.6.1"
+        "mime-types": "~2.1.24",
+        "negotiator": "0.6.2"
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@@ -45,18 +45,18 @@
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-      "integrity": "sha1-1vxyqm0n2ZyVqU/RiNcx7v/6Zjw=",
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/apache-crypt/-/apache-crypt-1.2.4.tgz",
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       "dev": true,
       "requires": {
-        "unix-crypt-td-js": "^1.0.0"
+        "unix-crypt-td-js": "^1.1.4"
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-      "resolved": "https://registry.npmjs.org/apache-md5/-/apache-md5-1.1.2.tgz",
-      "integrity": "sha1-7klza2ObTxCLbp5ibG2pkwa0FpI=",
+      "version": "1.1.5",
+      "resolved": "https://registry.npmjs.org/apache-md5/-/apache-md5-1.1.5.tgz",
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@@ -78,9 +78,9 @@
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-      "integrity": "sha1-AZW7AMzM8nEQbv7kpHhkiLcYBxI=",
+      "version": "2.1.0",
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@@ -311,6 +311,14 @@
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         "upath": "^1.1.1"
+      },
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+          "dev": true
+        }
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@@ -368,9 +376,9 @@
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+      "resolved": "https://registry.npmjs.org/colors/-/colors-1.4.0.tgz",
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@@ -386,14 +394,14 @@
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-      "resolved": "https://registry.npmjs.org/connect/-/connect-3.6.6.tgz",
-      "integrity": "sha1-Ce/2xVr3I24TcTWnJXSFi2eG9SQ=",
+      "version": "3.7.0",
+      "resolved": "https://registry.npmjs.org/connect/-/connect-3.7.0.tgz",
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-        "finalhandler": "1.1.0",
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@@ -487,9 +495,9 @@
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-      "integrity": "sha1-m81S4UwJd2PnSbJ0xDRu0uVgtak=",
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@@ -500,7 +508,7 @@
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@@ -536,7 +544,7 @@
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-      "resolved": "http://registry.npmjs.org/event-stream/-/event-stream-3.3.4.tgz",
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@@ -686,9 +694,9 @@
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-      "integrity": "sha1-8O/hjE9W5PQK/H4Gxxn9XuYYjzg=",
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@@ -725,17 +733,17 @@
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-      "integrity": "sha1-zgtoVbRYU+eRsvzGgARtiCU91/U=",
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@@ -776,561 +784,14 @@
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+          "integrity": "sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg==",
           "dev": true
         }
       }
@@ -2199,6 +1659,38 @@
         "http-errors": "~1.6.2",
         "mime-types": "~2.1.17",
         "parseurl": "~1.3.2"
+      },
+      "dependencies": {
+        "depd": {
+          "version": "1.1.2",
+          "resolved": "https://registry.npmjs.org/depd/-/depd-1.1.2.tgz",
+          "integrity": "sha1-m81S4UwJd2PnSbJ0xDRu0uVgtak=",
+          "dev": true
+        },
+        "http-errors": {
+          "version": "1.6.3",
+          "resolved": "https://registry.npmjs.org/http-errors/-/http-errors-1.6.3.tgz",
+          "integrity": "sha1-i1VoC7S+KDoLW/TqLjhYC+HZMg0=",
+          "dev": true,
+          "requires": {
+            "depd": "~1.1.2",
+            "inherits": "2.0.3",
+            "setprototypeof": "1.1.0",
+            "statuses": ">= 1.4.0 < 2"
+          }
+        },
+        "inherits": {
+          "version": "2.0.3",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.3.tgz",
+          "integrity": "sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=",
+          "dev": true
+        },
+        "setprototypeof": {
+          "version": "1.1.0",
+          "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.0.tgz",
+          "integrity": "sha512-BvE/TwpZX4FXExxOxZyRGQQv651MSwmWKZGqvmPcRIjDqWub67kTKuIMx43cZZrS/cBBzwBcNDWoFxt2XEFIpQ==",
+          "dev": true
+        }
       }
     },
     "set-value": {
@@ -2225,9 +1717,9 @@
       }
     },
     "setprototypeof": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.0.tgz",
-      "integrity": "sha512-BvE/TwpZX4FXExxOxZyRGQQv651MSwmWKZGqvmPcRIjDqWub67kTKuIMx43cZZrS/cBBzwBcNDWoFxt2XEFIpQ==",
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.1.tgz",
+      "integrity": "sha512-JvdAWfbXeIGaZ9cILp38HntZSFSo3mWg6xGcJJsd+d4aRMOqauag1C63dJfDw7OaMYwEbHMOxEZ1lqVRYP2OAw==",
       "dev": true
     },
     "shebang-command": {
@@ -2246,9 +1738,9 @@
       "dev": true
     },
     "signal-exit": {
-      "version": "3.0.2",
-      "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.2.tgz",
-      "integrity": "sha1-tf3AjxKH6hF4Yo5BXiUTK3NkbG0=",
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.3.tgz",
+      "integrity": "sha512-VUJ49FC8U1OxwZLxIbTTrDvLnf/6TDgxZcK8wxR8zs13xpx7xbG60ndBlhNrFi2EMuFRoeDoJO7wthSLq42EjA==",
       "dev": true
     },
     "snapdragon": {
@@ -2385,7 +1877,7 @@
     },
     "split": {
       "version": "0.3.3",
-      "resolved": "http://registry.npmjs.org/split/-/split-0.3.3.tgz",
+      "resolved": "https://registry.npmjs.org/split/-/split-0.3.3.tgz",
       "integrity": "sha1-zQ7qXmOiEd//frDwkcQTPi0N0o8=",
       "dev": true,
       "requires": {
@@ -2423,14 +1915,14 @@
       }
     },
     "statuses": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.3.1.tgz",
-      "integrity": "sha1-+vUbnrdKrvOzrPStX2Gr8ky3uT4=",
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
+      "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow=",
       "dev": true
     },
     "stream-combiner": {
       "version": "0.0.4",
-      "resolved": "http://registry.npmjs.org/stream-combiner/-/stream-combiner-0.0.4.tgz",
+      "resolved": "https://registry.npmjs.org/stream-combiner/-/stream-combiner-0.0.4.tgz",
       "integrity": "sha1-TV5DPBhSYd3mI8o/RMWGvPXErRQ=",
       "dev": true,
       "requires": {
@@ -2469,7 +1961,7 @@
     },
     "through": {
       "version": "2.3.8",
-      "resolved": "http://registry.npmjs.org/through/-/through-2.3.8.tgz",
+      "resolved": "https://registry.npmjs.org/through/-/through-2.3.8.tgz",
       "integrity": "sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU=",
       "dev": true
     },
@@ -2515,6 +2007,12 @@
         "repeat-string": "^1.6.1"
       }
     },
+    "toidentifier": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.0.tgz",
+      "integrity": "sha512-yaOH/Pk/VEhBWWTlhI+qXxDFXlejDGcQipMlyxda9nthulaxLZUNcUqFxokp0vcYnvteJln5FNQDRrxj3YcbVw==",
+      "dev": true
+    },
     "union-value": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/union-value/-/union-value-1.0.1.tgz",
@@ -2528,9 +2026,9 @@
       }
     },
     "unix-crypt-td-js": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/unix-crypt-td-js/-/unix-crypt-td-js-1.0.0.tgz",
-      "integrity": "sha1-HAgkFQSBvHoB1J6Y8exmjYJBLzs=",
+      "version": "1.1.4",
+      "resolved": "https://registry.npmjs.org/unix-crypt-td-js/-/unix-crypt-td-js-1.1.4.tgz",
+      "integrity": "sha512-8rMeVYWSIyccIJscb9NdCfZKSRBKYTeVnwmiRYT2ulE3qd1RaDQ0xQDP+rI3ccIWbhu/zuo5cgN8z73belNZgw==",
       "dev": true
     },
     "unpipe": {
@@ -2610,9 +2108,9 @@
       "dev": true
     },
     "uuid": {
-      "version": "3.3.2",
-      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.2.tgz",
-      "integrity": "sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA==",
+      "version": "3.4.0",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.4.0.tgz",
+      "integrity": "sha512-HjSDRw6gZE5JMggctHBcjVak08+KEVhSIiDzFnT9S9aegmp85S/bReBVTb4QTFaRNptJ9kuYaNhnbNEOkbKb/A==",
       "dev": true
     },
     "vary": {
@@ -2622,12 +2120,13 @@
       "dev": true
     },
     "websocket-driver": {
-      "version": "0.7.0",
-      "resolved": "https://registry.npmjs.org/websocket-driver/-/websocket-driver-0.7.0.tgz",
-      "integrity": "sha1-DK+dLXVdk67gSdS90NP+LMoqJOs=",
+      "version": "0.7.4",
+      "resolved": "https://registry.npmjs.org/websocket-driver/-/websocket-driver-0.7.4.tgz",
+      "integrity": "sha512-b17KeDIQVjvb0ssuSDF2cYXSg2iztliJ4B9WdsuB6J952qCPKmnVq4DyW5motImXHDC1cBT/1UezrJVsKw5zjg==",
       "dev": true,
       "requires": {
-        "http-parser-js": ">=0.4.0",
+        "http-parser-js": ">=0.5.1",
+        "safe-buffer": ">=5.1.0",
         "websocket-extensions": ">=0.1.1"
       }
     },
diff --git a/week-1/1-parent-child/index.html b/week-1/1-parent-child/index.html
index 458a4cb21..3c8abf1bc 100644
--- a/week-1/1-parent-child/index.html
+++ b/week-1/1-parent-child/index.html
@@ -27,6 +27,7 @@
           <p class="message__content">
             I can meet on Tuesday and Wednesday after 4.
           </p>
+          <span class="message__time">7:15pm</span>
         </div>
       </div>
     </div>
diff --git a/week-1/2-html-attributes/index.html b/week-1/2-html-attributes/index.html
index dc861fa4f..5d59acc0e 100644
--- a/week-1/2-html-attributes/index.html
+++ b/week-1/2-html-attributes/index.html
@@ -23,14 +23,15 @@
         <div class="message">
           <div class="message__author">Luke</div>
           <p class="message__content">
-            Let's meet at the iCafe in Merchant City. https://goo.gl/maps/aza4h9nUBhn
+            Let's meet at the <a href="https://goo.gl/maps/aza4h9nUBhn">iCafe</a> in Merchant City.
           </p>
           <span class="message__time">7:35pm</span>
         </div>
         <div class="message">
           <div class="message__author">Won</div>
           <p class="message__content">
-            Ok! https://media.giphy.com/media/l41K4KlVE8dgozf8I/giphy.gif
+            Ok!
+            <img src="https://media.giphy.com/media/l41K4KlVE8dgozf8I/giphy.gif" alt="funny gif" />
           </p>
           <span class="message__time">7:38pm</span>
         </div>
diff --git a/week-1/3-semantic-html/index.html b/week-1/3-semantic-html/index.html
index 3640deaff..dd1a2475c 100644
--- a/week-1/3-semantic-html/index.html
+++ b/week-1/3-semantic-html/index.html
@@ -12,30 +12,31 @@
 
   <body>
     <div class="site-wrapper">
-      <div class="site-header">
+      <header class="site-header" role="banner">
         <div class="site-header__title">Messages</div>
-      </div>
-      <div class="messages">
-        <div class="message">
+      </header>
+
+      <main role="main" class="messages">
+        <article class="message">
           <div class="message__author">Won</div>
           <p class="message__content">Where should we meet later?</p>
-          <span class="message__time">Mar 25, 2018 7:25pm</span>
-        </div>
-        <div class="message">
+          <time class="message__time" datetime="2018-03-25 19:25:00">Mar 25, 2018 7:25pm</time>
+        </article>
+        <article class="message">
           <div class="message__author">Luke</div>
           <p class="message__content">
             Let's meet at the iCafe in Merchant City. https://goo.gl/maps/aza4h9nUBhn
           </p>
-          <span class="message__time">Mar 25, 2018 7:35pm</span>
-        </div>
-        <div class="message">
+          <time class="message__time" datetime="2018-03-25 19:35:00">Mar 25, 2018 7:35pm</time>
+        </article>
+        <article class="message">
           <div class="message__author">Won</div>
           <p class="message__content">
             Ok! https://media.giphy.com/media/l41K4KlVE8dgozf8I/giphy.gif
           </p>
-          <span class="message__time">Mar 25, 2018 7:38pm</span>
-        </div>
-      </div>
+          <time class="message__time" datetime="2018-03-25 19:38:00">Mar 25, 2018 7:38pm</time>
+        </article>
+      </main>
       <div id="result" class="result"></div>
     </div>
     <script defer src="/js/3-result.js"></script>
diff --git a/week-1/4-links-scripts/index.html b/week-1/4-links-scripts/index.html
index 303c7fbd2..229d7b040 100644
--- a/week-1/4-links-scripts/index.html
+++ b/week-1/4-links-scripts/index.html
@@ -4,6 +4,7 @@
     <meta charset="utf-8" />
     <title>4. Adding Links and Scripts - HTML, CSS and Git Exercises</title>
     <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <link rel="stylesheet" type="text/css" href="css/missing-styles.css" />
   </head>
 
   <body>
@@ -33,5 +34,7 @@
         </div>
       </div>
     </div>
+
+    <script src="js/convertUrls.js" type="text/javascript"></script>
   </body>
 </html>
diff --git a/week-1/5-css-selectors/message-backgrounds.css b/week-1/5-css-selectors/message-backgrounds.css
index ffe483325..8d4867c9e 100644
--- a/week-1/5-css-selectors/message-backgrounds.css
+++ b/week-1/5-css-selectors/message-backgrounds.css
@@ -1 +1,13 @@
 /* Add your CSS code below */
+
+div #first-message {
+  background-color: red;
+}
+
+article {
+  background-color: cadetblue;
+}
+
+div .message--latest {
+  background-color: yellow;
+}
diff --git a/week-1/6-css-properties/styles.css b/week-1/6-css-properties/styles.css
index ffe483325..2b2b8589c 100644
--- a/week-1/6-css-properties/styles.css
+++ b/week-1/6-css-properties/styles.css
@@ -1 +1,24 @@
 /* Add your CSS code below */
+
+a {
+  color: red;
+  font-weight: bold;
+  text-decoration: none;
+}
+
+.message__time {
+  font-size: 0.9rem;
+}
+
+.message--old {
+  opacity: 50%;
+}
+
+.message--unread {
+  border-left-style: groove;
+  border-left-color: rgb(54, 54, 224);
+}
+
+p.message__content {
+  line-height: 50px;
+}
diff --git a/week-1/7-css-box/styles.css b/week-1/7-css-box/styles.css
index 013b94f1e..e1f3eed87 100644
--- a/week-1/7-css-box/styles.css
+++ b/week-1/7-css-box/styles.css
@@ -1,6 +1,18 @@
 /* Try different box model properties below */
 .pages__page {
-  border: 1px solid #4491db;
+  border: 0px solid #4491db;
   border-radius: 4px;
-  background: #fff;
+  background: none;
+  font-size: 1em;
+}
+
+.country {
+  width: 100%;
+  height: 30px;
+  margin-left: -0.5em;
+  padding: 0.5em;
+}
+
+.countries {
+  margin-top: -0.5em;
 }
diff --git a/week-1/8-advanced-selectors/styles.css b/week-1/8-advanced-selectors/styles.css
index d35c3c371..1a99c68d5 100644
--- a/week-1/8-advanced-selectors/styles.css
+++ b/week-1/8-advanced-selectors/styles.css
@@ -1 +1,15 @@
 /* Try different box model properties below */
+
+.site-header p {
+  color: white;
+  margin-bottom: -0.5em;
+}
+
+.site-footer p {
+  font-size: 12px;
+  text-align: center;
+}
+
+.message:last-child {
+  box-shadow: 4px 4px #dba944;
+}
diff --git a/week-1/9-git-branch/styles.css b/week-1/9-git-branch/styles.css
index 0051cdbaf..5d490fc8a 100644
--- a/week-1/9-git-branch/styles.css
+++ b/week-1/9-git-branch/styles.css
@@ -1,6 +1,9 @@
 /* Add your own CSS code below */
 .link {
-  color: #4491db;
+  color: #2775bd;
+  color: #80b840;
+  color: #c92929;
+
   font-weight: 700;
   text-decoration: none;
 }
diff --git a/week-2/10-media-queries/columns.css b/week-2/10-media-queries/columns.css
index 43e80d23c..f4447cf73 100644
--- a/week-2/10-media-queries/columns.css
+++ b/week-2/10-media-queries/columns.css
@@ -1 +1,15 @@
 /* Add your own CSS code below */
+
+/* for smaller displays */
+
+@media only screen and (max-width: 768px) {
+  .countries {
+    columns: 2;
+  }
+}
+
+@media only screen and (min-width: 1200px) {
+  .countries {
+    columns: 3;
+  }
+}
diff --git a/week-2/11-flexbox/flexbox.css b/week-2/11-flexbox/flexbox.css
index 43e80d23c..389c6c7ee 100644
--- a/week-2/11-flexbox/flexbox.css
+++ b/week-2/11-flexbox/flexbox.css
@@ -1 +1,17 @@
 /* Add your own CSS code below */
+
+.countries {
+  display: flex;
+}
+
+.countries--first {
+  flex-direction: row-reverse;
+}
+
+.countries--second {
+  flex-direction: column;
+}
+
+.countries--third {
+  flex-direction: column-reverse;
+}
diff --git a/week-2/12-justify-content/flexbox.css b/week-2/12-justify-content/flexbox.css
index 3c4c7ff18..ee07bb287 100644
--- a/week-2/12-justify-content/flexbox.css
+++ b/week-2/12-justify-content/flexbox.css
@@ -7,3 +7,21 @@
 }
 
 /* Add your own CSS code below */
+
+.countries--first {
+  justify-content: flex-end;
+}
+
+.countries--second {
+  justify-content: space-around;
+}
+
+.countries--third {
+  justify-content: flex-end;
+  flex-direction: column;
+}
+
+.countries--fourth {
+  justify-content: space-around;
+  flex-direction: column-reverse;
+}
diff --git a/week-2/13-align-items/flexbox.css b/week-2/13-align-items/flexbox.css
index 3675a0df3..c19192978 100644
--- a/week-2/13-align-items/flexbox.css
+++ b/week-2/13-align-items/flexbox.css
@@ -2,3 +2,22 @@
   display: flex;
 }
 /* Add your own CSS code below */
+
+.countries--first {
+  align-items: center;
+}
+
+.countries--second {
+  align-items: flex-end;
+  flex-direction: row-reverse;
+}
+
+.countries--third {
+  flex-direction: column;
+  align-items: flex-end;
+}
+
+.countries--fourth {
+  flex-direction: column-reverse;
+  align-items: center;
+}
diff --git a/week-2/14-order/flexbox.css b/week-2/14-order/flexbox.css
index ed621b793..d6695599c 100644
--- a/week-2/14-order/flexbox.css
+++ b/week-2/14-order/flexbox.css
@@ -3,3 +3,48 @@
 }
 
 /* Add your own CSS code below */
+
+.countries--first .country:nth-of-type(1) {
+  order: 2;
+  border: 2px solid red;
+}
+
+.countries--second .country:nth-of-type(1) {
+  order: 3;
+  border: 2px solid red;
+}
+
+.countries--second .country:nth-of-type(4) {
+  order: 2;
+  border: 2px solid red;
+}
+
+.countries--second .country:nth-of-type(5) {
+  order: 5;
+  border: 2px solid red;
+}
+
+.countries--third .country:nth-of-type(5) {
+  order: -1;
+  border: 2px solid red;
+}
+
+.countries--third .country:nth-of-type(4) {
+  order: 1;
+  border: 2px solid red;
+}
+
+.countries--third .country:nth-of-type(3) {
+  order: 2;
+  border: 2px solid red;
+}
+
+.countries--third .country:nth-of-type(2) {
+  order: 3;
+  border: 2px solid red;
+}
+
+.countries--third .country:nth-of-type(1) {
+  order: 4;
+  border: 2px solid red;
+}
diff --git a/week-2/15-align-self/flexbox.css b/week-2/15-align-self/flexbox.css
index ed621b793..fc9c4f0d2 100644
--- a/week-2/15-align-self/flexbox.css
+++ b/week-2/15-align-self/flexbox.css
@@ -3,3 +3,34 @@
 }
 
 /* Add your own CSS code below */
+
+.countries--first .country--ethiopia {
+  align-self: flex-end;
+}
+
+.countries--second,
+.countries--second .country--ethiopia {
+  align-items: center;
+  align-self: flex-end;
+}
+
+.countries--third .country--croatia {
+  align-self: flex-end;
+}
+
+.countries--third .country--ethiopia {
+  align-self: flex-end;
+}
+
+.countries--third .country--laos {
+  align-self: flex-end;
+}
+
+.countries--fourth {
+  align-items: flex-start;
+  flex-direction: column;
+}
+
+.countries--fourth .country--uganda {
+  align-self: center;
+}
diff --git a/week-2/16-more-flexbox/flexbox.css b/week-2/16-more-flexbox/flexbox.css
index ed621b793..2ea8635c4 100644
--- a/week-2/16-more-flexbox/flexbox.css
+++ b/week-2/16-more-flexbox/flexbox.css
@@ -3,3 +3,71 @@
 }
 
 /* Add your own CSS code below */
+
+.countries--first {
+  align-items: flex-end;
+  justify-content: right;
+}
+
+.countries--second {
+  align-items: flex-end;
+  justify-content: center;
+  flex-direction: row-reverse;
+}
+
+.countries--third {
+  align-items: flex-start;
+  justify-content: right;
+}
+
+.countries--third .country--brazil {
+  align-self: flex-end;
+}
+
+.countries--fourth {
+  flex-direction: column;
+  justify-content: center;
+  align-items: center;
+}
+
+.countries--fourth .country--brazil {
+  align-self: flex-end;
+}
+
+.countries--fourth .country--croatia {
+  align-self: flex-end;
+}
+
+.countries--fourth .country--uganda {
+  align-self: flex-end;
+}
+
+.countries--fifth {
+  flex-flow: column-reverse wrap;
+  justify-content: space-around;
+}
+
+.countries--fifth .country--brazil {
+  border: 2px solid red;
+  align-self: flex-end;
+}
+
+.countries--fifth .country--croatia {
+  border: 2px solid red;
+  align-self: flex-end;
+}
+
+.countries--fifth .country--ethiopia {
+  border: 2px solid red;
+  align-self: flex-end;
+}
+
+.countries--fifth .country--laos {
+  border: 2px solid red;
+  order: 1;
+  align-self: flex-end;
+}
+
+.countries--fifth .country--uganda {
+  align-self: center;
+}
diff --git a/week-2/17-nav-menu/styles.css b/week-2/17-nav-menu/styles.css
index f04f4c7ba..8383ca415 100644
--- a/week-2/17-nav-menu/styles.css
+++ b/week-2/17-nav-menu/styles.css
@@ -1 +1,23 @@
 /* Write your media queries and flexbox CSS below */
+
+@media only screen and (min-width: 480px) {
+  .site-header__nav {
+    display: flex;
+  }
+}
+
+@media (min-width: 700px) {
+  .site-header {
+    display: flex;
+    align-items: center;
+    flex-direction: row;
+  }
+}
+
+@media (min-width: 992px) {
+  .site-header {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+  }
+}
diff --git a/week-2/18-git-merge/styles.css b/week-2/18-git-merge/styles.css
index 0051cdbaf..af46a4f77 100644
--- a/week-2/18-git-merge/styles.css
+++ b/week-2/18-git-merge/styles.css
@@ -1,6 +1,6 @@
 /* Add your own CSS code below */
 .link {
-  color: #4491db;
+  color: orangered;
   font-weight: 700;
   text-decoration: none;
 }