Update code

src/styles/bases/_base.scss

@@ -0,0 +1,23 @@
+.flex {
+  display: flex;
+}
+
+.justify-content-between {
+  justify-content: space-between;
+}
+
+.mr-auto {
+  margin: auto;
+}
+
+.h-auto {
+  height: auto;
+}
+
+.w-auto {
+  width: auto;
+}
+
+.no-underline {
+  text-decoration: none;
+}