diff --git a/source/scss/common.scss b/source/scss/common.scss
index 2682ebf..cde0eaf 100644
--- a/source/scss/common.scss
+++ b/source/scss/common.scss
@@ -26,11 +26,6 @@ a:visited {
   }
 }
 
-img {
-  display: block;
-  width: 100%;
-}
-
 h1,
 h2,
 h3,
diff --git a/source/scss/index.scss b/source/scss/index.scss
index 92c0d3c..8bc340f 100644
--- a/source/scss/index.scss
+++ b/source/scss/index.scss
@@ -59,6 +59,11 @@
       background-color: var(--background-2);
     }
   }
+
+  .chart {
+    display: block;
+    width: 100%;
+  }
 }
 
 .page-footer {
diff --git a/source/templates/index.html b/source/templates/index.html
index e89c650..ef2c179 100644
--- a/source/templates/index.html
+++ b/source/templates/index.html
@@ -18,7 +18,7 @@
     registered users on Tildes.
   </p>
 
-  <img src="/charts/user-count.svg" alt="User Count Chart">
+  <img class="chart" src="/charts/user-count.svg" alt="User Count Chart">
 
   <table>
     <thead>