HTML Guide for from

CSS: “background”: “from” is not a valid color 3 or 6 hexadecimals numbers.

background CSS property has an invalid value; "from" is not recognized as a valid color or background value.

The background property in CSS can accept color names, hex codes, rgb/rgba values, or CSS keywords, but "from" is not valid. Sometimes this error can appear if using incorrect CSS gradient syntax, where "from" is not a recognized value.

Detailed Explanation

In standard HTML and CSS, a background can be set using:

Hex color codes, such as #fff or #ffffff
Named colors, such as red or blue
Functions, such as rgb(255,0,0) or linear-gradient(...)

If you wrote something like:

background: from #fff to #000;

background: "from";

neither is valid CSS.

To use gradients, use correct linear-gradient() or radial-gradient() syntax:

background: linear-gradient(to right, #fff, #000);

For a solid color:

background: #fff;

HTML Examples

Incorrect CSS:

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Incorrect CSS</title>
  <style>
    div {
      background: from #fff to #000; /* Invalid syntax */
    }
  </style>
</head>
<body>
  <div>Bad background</div>
</body>
</html>

Correct CSS (Gradient):

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Correct CSS Gradient</title>
  <style>
    div {
      background: linear-gradient(to right, #fff, #000);
    }
  </style>
</head>
<body>
  <div>Good background</div>
</body>
</html>

Correct CSS (Solid Color):

<!DOCTYPE html>
<html lang="en">
<head>
  <title>Correct CSS Color</title>
  <style>
    div {
      background: #fff;
    }
  </style>
</head>
<body>
  <div>White background</div>
</body>
</html>

Always use a valid color value or gradient function for the background property.