better naming

examples/codemirror-repl/style.css

@@ -0,0 +1,31 @@
+body,
+html {
+  margin: 0;
+  height: 100%;
+  background: #282c34;
+}
+
+main {
+  height: 100%;
+  display: flex;
+  flex-direction: column;
+}
+
+.container {
+  flex-grow: 1;
+  max-height: 100%;
+  position: relative;
+  overflow: auto;
+}
+
+#editor {
+  overflow: auto;
+}
+
+.cm-editor {
+  height: 100%;
+}
+
+#roll {
+  height: 300px;
+}