diff --git a/assets/main.css b/assets/main.css
deleted file mode 100644
index c4122e598..000000000
--- a/assets/main.css
+++ /dev/null
@@ -1,42 +0,0 @@
-.markdown-section iframe[src*="buttons.github.io"] {
-    margin: 0;
-}
-
-figure.thumbnails img {
-    margin: 0.75em 0;
-    border-radius: 3px;
-    box-shadow: 0 2px 6px rgba(0,0,0,0.1), 0 4px 12px rgba(0,0,0,0.15);
-}
-
-@media (min-width: 30em) {
-    figure.thumbnails:after {
-        content: "";
-        display: table;
-        clear: both;
-    }
-
-    figure.thumbnails img {
-        float: left;
-        width: calc(50% - 0.75em);
-    }
-
-    figure.thumbnails img:nth-child(even) {
-        margin-left: 1.5em;
-    }
-
-    @supports (display: flex) {
-        figure.thumbnails {
-            display: flex;
-            align-items: center;
-        }
-
-        figure.thumbnails img {
-            flex-grow: 1;
-            width: 0;
-        }
-
-        figure.thumbnails img + img {
-            margin: 0 0 0 1.5em;
-        }
-    }
-}