adds fonts & mixins; improves margins

src/style/main.scss

@@ -1,8 +1,14 @@
 @charset "utf-8";
 
+@import "fonts";
+
+@import "mixins";
+
 body {
     padding: 0 0 0 0;
     margin: 0 0 0 0;
+    @include geologica-font;
+    font-size: medium;
 }
 
 @import "header";
@@ -15,3 +21,10 @@ body {
     align-items: center;
     text-align: center;
 }
+
+main {
+    font-size: large;
+    width: 90%;
+    margin-left: auto;
+    margin-right: auto;
+}