diff --git a/week-1/1-parent-child/index.html b/week-1/1-parent-child/index.html
index 458a4cb21..dd4f809f5 100644
--- a/week-1/1-parent-child/index.html
+++ b/week-1/1-parent-child/index.html
@@ -20,7 +20,7 @@
           <p class="message__content">
             Who is available to meet this week to work on our group project?
           </p>
-          <span class="message__time">6:48pm</span>
+          <span class="message__time">7:15pm</span>
         </div>
         <div class="message">
           <div class="message__author">Habiba</div>
diff --git a/week-1/9-git-branch/styles.css b/week-1/9-git-branch/styles.css
index 0051cdbaf..7a3354927 100644
--- a/week-1/9-git-branch/styles.css
+++ b/week-1/9-git-branch/styles.css
@@ -1,6 +1,6 @@
 /* Add your own CSS code below */
 .link {
-  color: #4491db;
+  color: red;
   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..9e049f4bc 100644
--- a/week-2/10-media-queries/columns.css
+++ b/week-2/10-media-queries/columns.css
@@ -1 +1,12 @@
 /* Add your own CSS code below */
+
+@media screen and (min-width: 768px) {
+  .countries {
+    columns: 2;
+  }
+}
+@media screen and (max-width: 1200px) {
+  .countries {
+    columns: 3;
+  }
+}
diff --git a/week-2/11-flexbox/flexbox.css b/week-2/11-flexbox/flexbox.css
index 43e80d23c..c4054c298 100644
--- a/week-2/11-flexbox/flexbox.css
+++ b/week-2/11-flexbox/flexbox.css
@@ -1 +1,10 @@
 /* Add your own CSS code below */
+.countries--first {
+  display: flex;
+  flex-direction: row-reverse;
+}
+
+.countries--third {
+  display: flex;
+  flex-direction: column-reverse;
+}
diff --git a/week-2/12-justify-content/flexbox.css b/week-2/12-justify-content/flexbox.css
index 3c4c7ff18..8cbb663c4 100644
--- a/week-2/12-justify-content/flexbox.css
+++ b/week-2/12-justify-content/flexbox.css
@@ -1,9 +1,25 @@
-.countries {
+.countries--first {
   display: flex;
+  justify-content: flex-end;
+  flex-direction: row;
 }
 
-.countries--second .country {
-  padding: 0.5em;
+.countries--second {
+  display: flex;
+  justify-content: space-around;
+  padding: 0.2em;
 }
 
 /* Add your own CSS code below */
+
+.countries--third {
+  display: flex;
+  flex-direction: column;
+  justify-content: flex-end;
+}
+
+.countries--fourth {
+  display: flex;
+  flex-direction: column-reverse;
+  justify-content: space-between;
+}
diff --git a/week-2/13-align-items/flexbox.css b/week-2/13-align-items/flexbox.css
index 3675a0df3..bfb011b30 100644
--- a/week-2/13-align-items/flexbox.css
+++ b/week-2/13-align-items/flexbox.css
@@ -1,4 +1,24 @@
-.countries {
+.countries--first {
   display: flex;
+  align-items: center;
+  justify-content: left;
 }
 /* Add your own CSS code below */
+
+.countries--second {
+  display: flex;
+  flex-direction: row-reverse;
+  align-items: flex-end;
+}
+
+.countries--third {
+  display: flex;
+  flex-direction: column;
+  align-items: flex-end;
+}
+
+.countries--fourth {
+  display: flex;
+  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..3ede0f493 100644
--- a/week-2/14-order/flexbox.css
+++ b/week-2/14-order/flexbox.css
@@ -1,5 +1,37 @@
 .countries {
   display: flex;
+  flex-direction: row;
+  justify-content: flex-start;
 }
-
 /* Add your own CSS code below */
+
+.countries--first .country--brazil {
+  order: 4;
+}
+
+.countries--second .country--croatia {
+  order: 0;
+}
+
+.countries--second .country--brazil {
+  order: 1;
+}
+.countries--second .country--uganda {
+  order: 2;
+}
+
+.countries--third .country--brazil {
+  order: 4;
+}
+
+.countries--third .country--croatia {
+  order: 3;
+}
+
+.countries--third .country--ethiopia {
+  order: 2;
+}
+
+.countries--third .country--laos {
+  order: 1;
+}
diff --git a/week-2/15-align-self/flexbox.css b/week-2/15-align-self/flexbox.css
index ed621b793..1bd2e8be1 100644
--- a/week-2/15-align-self/flexbox.css
+++ b/week-2/15-align-self/flexbox.css
@@ -1,5 +1,54 @@
-.countries {
+/* Add your own CSS code below */
+.countries--first {
   display: flex;
 }
 
-/* Add your own CSS code below */
+.countries--first .country--ethiopia {
+  display: flex;
+  align-self: flex-end;
+}
+
+.countries--second {
+  display: flex;
+  align-items: center;
+}
+
+.countries--second .country--ethiopia {
+  display: flex;
+  align-self: flex-end;
+}
+
+.countries--third {
+  display: flex;
+  align-items: center;
+}
+
+.countries--third .country--brazil {
+  align-self: flex-start;
+}
+
+.countries--third .country--uganda {
+  align-self: flex-start;
+}
+
+.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 {
+  display: flex;
+  flex-direction: column;
+  align-items: flex-start;
+}
+
+.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..332ebe2f5 100644
--- a/week-2/16-more-flexbox/flexbox.css
+++ b/week-2/16-more-flexbox/flexbox.css
@@ -1,5 +1,60 @@
-.countries {
+/* Add your own CSS code below */
+
+.countries--first {
   display: flex;
+  align-items: flex-end;
+  justify-content: flex-end;
 }
 
-/* Add your own CSS code below */
+.countries--second {
+  display: flex;
+  flex-direction: row-reverse;
+  align-items: flex-end;
+  justify-content: center;
+}
+
+.countries--third {
+  display: flex;
+  align-items: flex-start;
+}
+
+.countries--third .country--brazil {
+  align-self: flex-end;
+}
+
+.countries--fourth {
+  display: flex;
+  flex-direction: column;
+  align-items: flex-end;
+}
+
+.countries--fourth .country--ethiopia {
+  align-self: center;
+}
+
+.countries--fourth .country--laos {
+  align-self: center;
+}
+
+.countries--fifth {
+  display: flex;
+  flex-direction: column;
+  align-items: flex-end;
+  justify-content: space-between;
+}
+
+.countries--fifth .country--brazil {
+  order: 4;
+}
+
+.countries--fifth .country--croatia {
+  order: 3;
+}
+
+.countries--fifth .country--ethiopia {
+  order: 2;
+}
+
+.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..b95f3374d 100644
--- a/week-2/17-nav-menu/styles.css
+++ b/week-2/17-nav-menu/styles.css
@@ -1 +1,27 @@
 /* Write your media queries and flexbox CSS below */
+@media screen and (min-width: 480px) {
+  .site-header__nav {
+    columns: 1;
+    display: flex;
+    flex-direction: row;
+    justify-content: center;
+  }
+}
+
+@media screen and (min-width: 700px) {
+  .site-header {
+    columns: 1;
+    display: flex;
+    flex-direction: row;
+    justify-content: space-between;
+  }
+}
+
+@media screen and (min-width: 992px) {
+  .site-header {
+    columns: 1;
+    display: flex;
+    flex-direction: row;
+    justify-content: space-between;
+  }
+}