ammend flashy format

contrib/lua/memeposting.lua

@@ -14,7 +14,7 @@ function explode_text(str)
 end
 
 function flashy_text(str)
-  return span_text("flashy", str)
+  return string.format("<span class='flashy'>%s</span>", str)
 end
 
 function psy_text(str)

contrib/static/site.css

@@ -675,5 +675,4 @@ th > label {
 .flashy {
     animation: flash 1s infinite;
     animation-timing-function: linear;
-    text-align: center;
 }