3/22/2018 - 3:06 PM

Placeholders - Styling

WebKit, Blink (Safari, Google Chrome, Opera 15+) and Microsoft Edge are using a pseudo-element: ::-webkit-input-placeholder. [Ref]
Mozilla Firefox 4 to 18 is using a pseudo-class: :-moz-placeholder (one colon). [Ref]
Mozilla Firefox 19+ is using a pseudo-element: ::-moz-placeholder, but the old selector will still work for a while. [Ref]
Internet Explorer 10 and 11 are using a pseudo-class: :-ms-input-placeholder. [Ref]