National Memorial Day Memorial: Tutorial on setting black and white web page background

Unforgettable condolences: Today is the National Memorial Day. PHP Chinese has changed the entire website to black and white to express its condolences to the victims of the Nanjing Massacre.

Don’t forget, don’t forget!

Let’s share the code with you:

Black and white CSS code

html{
-webkit-filter: grayscale(100%);
-moz-filter: grayscale(100%);
-ms-filter: grayscale(100%);
-o-filter: grayscale(100%);
filter: grayscale(100%);
filter: gray; 
  }

It’s very simple, just add a piece of code to the head .

Usage Tutorial:

This code can change the web page to black and white. Add the code to the top of the CSS to make the entire site plain.

Black and white rendering after adding: