Hide placeholder when image is N/A storewide

Hide placeholder when image is N/A storewide

Add the following in base.css
Idea
/* Hide all placeholder images storewide */
img[src*="placeholder"] {
  display: none !important;
}
Idea
/* For background placeholders */
[class*="placeholder"], .placeholder {
  display: none !important;
  background: none !important;
}