diff --git a/css/default.css b/css/default.css
index 381ff73..a8b30a4 100644
--- a/css/default.css
+++ b/css/default.css
@@ -1,141 +1,145 @@
+img {
+    max-width: 100%;
+}
+
 html {
-  font-size: 62.5%;
+    font-size: 62.5%;
 }
 
 body {
-  font-size: 1.6rem;
-  color: #000;
+    font-size: 1.6rem;
+    color: #000;
 }
 
 header {
-  border-bottom: 0.2rem solid #000;
+    border-bottom: 0.2rem solid #000;
 }
 
 nav {
-  text-align: right;
+    text-align: right;
 }
 
 nav a {
-  font-size: 1.8rem;
-  font-weight: bold;
-  color: black;
-  text-decoration: none;
-  text-transform: uppercase;
+    font-size: 1.6rem;
+    font-weight: bold;
+    color: black;
+    text-decoration: none;
+    text-transform: uppercase;
 }
 
 footer {
-  margin-top: 3rem;
-  padding: 1.2rem 0;
-  border-top: 0.2rem solid #000;
-  font-size: 1.2rem;
-  color: #555;
+    margin-top: 3rem;
+    padding: 1.2rem 0;
+    border-top: 0.2rem solid #000;
+    font-size: 1.2rem;
+    color: #555;
 }
 
 h1 {
-  font-size: 2.4rem;
+    font-size: 2.4rem;
 }
 
 h2 {
-  font-size: 2rem;
+    font-size: 2rem;
 }
 
 article .header {
-  font-size: 1.4rem;
-  font-style: italic;
-  color: #555;
+    font-size: 1.4rem;
+    font-style: italic;
+    color: #555;
 }
 
 .logo a {
-  font-weight: bold;
-  color: #000;
-  text-decoration: none;
+    font-weight: bold;
+    color: #000;
+    text-decoration: none;
 }
 
 @media (max-width: 319px) {
-  body {
-    width: 90%;
-    margin: 0;
-    padding: 0 5%;
-  }
-  header {
-    margin: 4.2rem 0;
-  }
-  nav {
-    margin: 0 auto 3rem;
-    text-align: center;
-  }
-  footer {
-    text-align: center;
-  }
-  .logo {
-    text-align: center;
-    margin: 1rem auto 3rem;
-  }
-  .logo a {
-    font-size: 2.4rem;
-  }
-  nav a {
-    display: block;
-    line-height: 1.6;
-  }
+    body {
+	width: 90%;
+	margin: 0;
+	padding: 0 5%;
+    }
+    header {
+	margin: 4.2rem 0;
+    }
+    nav {
+	margin: 0 auto 3rem;
+	text-align: center;
+    }
+    footer {
+	text-align: center;
+    }
+    .logo {
+	text-align: center;
+	margin: 1rem auto 3rem;
+    }
+    .logo a {
+	font-size: 2.4rem;
+    }
+    nav a {
+	display: block;
+	line-height: 1.6;
+    }
 }
 
 @media (min-width: 320px) {
-  body {
-    width: 90%;
-    margin: 0;
-    padding: 0 5%;
-  }
-  header {
-    margin: 4.2rem 0;
-  }
-  nav {
-    margin: 0 auto 3rem;
-    text-align: center;
-  }
-  footer {
-    text-align: center;
-  }
-  .logo {
-    text-align: center;
-    margin: 1rem auto 3rem;
-  }
-  .logo a {
-    font-size: 2.4rem;
-  }
-  nav a {
-    display: inline;
-    margin: 0 0.6rem;
-  }
+    body {
+	width: 90%;
+	margin: 0;
+	padding: 0 5%;
+    }
+    header {
+	margin: 4.2rem 0;
+    }
+    nav {
+	margin: 0 auto 3rem;
+	text-align: center;
+    }
+    footer {
+	text-align: center;
+    }
+    .logo {
+	text-align: center;
+	margin: 1rem auto 3rem;
+    }
+    .logo a {
+	font-size: 2.4rem;
+    }
+    nav a {
+	display: inline;
+	margin: 0 0.6rem;
+    }
 }
 
 @media (min-width: 640px) {
-  body {
-    width: 60rem;
-    margin: 0 auto;
-    padding: 0;
-  }
-  header {
-    margin: 0 0 3rem;
-    padding: 1.2rem 0;
-  }
-  nav {
-    margin: 0;
-    text-align: right;
-  }
-  nav a {
-    margin: 0 0 0 1.2rem;
-    display: inline;
-  }
-  footer {
-    text-align: right;
-  }
-  .logo {
-    margin: 0;
-    text-align: left;
-  }
-  .logo a {
-    float: left;
-    font-size: 1.8rem;
-  }
+    body {
+	width: 80rem;
+	margin: 0 auto;
+	padding: 0;
+    }
+    header {
+	margin: 0 0 3rem;
+	padding: 1.2rem 0;
+    }
+    nav {
+	margin: 0;
+	text-align: right;
+    }
+    nav a {
+	margin: 0 0 0 1.2rem;
+	display: inline;
+    }
+    footer {
+	text-align: right;
+    }
+    .logo {
+	margin: 0;
+	text-align: left;
+    }
+    .logo a {
+	float: left;
+	font-size: 1.8rem;
+    }
 }