ISTWCMS-5950 : css to line up icons

src/patterns/04-components/exp_col_block/_exp_col_block.scss

@@ -263,6 +263,8 @@
 
   li {
     display: inline-block;
+    margin: 0;
+    padding: 0 0 0 var(--size-2);
   }
 }