Remove needless margin for buttons

I've tested and think this margin was redundant. Correct me if I'm wrong.
Had to be removed to be compatible with these changes:
https://github.com/Vioner/blissroms.github.io/commit/cdfd6b4e1041d03e9183dc2ac0e59da8b734477d
diff --git a/css/style.css b/css/style.css
index 416fe6f..65db9bf 100644
--- a/css/style.css
+++ b/css/style.css
@@ -1252,7 +1252,7 @@
       margin-bottom: 30px;
       font-size: 18px; }
     .portfolio-projects .col-lg-6 + .col-lg-6 + .col-lg-6 {margin-top:40px}
-    .portfolio-projects--btn {font-size: 18px;margin:0 8px;} }
+    .portfolio-projects--btn {font-size: 18px;} }
   @media screen and (min-width: 1366px) {
     .portfolio-projects--title {margin-top:28%;}
   }