Use table-cell instead of inline-block in my-cards-list-wrapper CSS.

Thanks to johappel and xet7 !

Related #1667

client/components/main/myCards.styl

@@ -43,7 +43,7 @@
   border-radius: 5px
   padding: 1.5rem
   padding-top: 0.75rem
-  display: inline-block
+  display: table-cell
   min-width: 250px
   max-width: 350px