CSS Radial Gradienter

Indholdsfortegnelse

CSS Radial Gradienter

En radial gradient er defineret af dens centrum.

For at skabe en radial gradient skal du også definere mindst to farvestop.

Syntaks

background-image: radial-gradient(shape size at position, start-color, ..., last-color);

Som standard er formen ellipse, størrelsen er det fjerneste hjørne, og positionen er i midten.

Radial gradient - jævnt fordelte farvestop (dette er standard)

Følgende eksempel viser en radial gradient med jævnt fordelte farvestop:

Eksempel

   #grad {
  background-image: radial-gradient(red, yellow, green);
}

Prøv det selv →

<!DOCTYPE html>
<html>
<head>
<style>
#grad1 {
  height: 150px;
  width: 200px;
  background-color: red; /* For browsers that do not support gradients */
  background-image: radial-gradient(red, yellow, green);
}
</style>
</head>
<body>

<h1>Radial Gradient - Evenly Spaced Color Stops</h1>

<div id="grad1"></div>

</body>
</html>

Radial gradient - Farvestop med forskellig afstand

Følgende eksempel viser en radial gradient med farvestop med forskellig afstand:

Eksempel

   #grad {
  background-image: radial-gradient(red 5%, yellow 15%, green 60%);
}

Prøv det selv →

<!DOCTYPE html>
<html>
<head>
<style>
#grad1 {
  height: 150px;
  width: 200px;
  background-color: red; /* For browsers that do not support gradients */
  background-image: radial-gradient(red 5%, yellow 15%, green 60%);
}
</style>
</head>
<body>

<h1>Radial Gradient - Differently Spaced Color Stops</h1>

<div id="grad1"></div>

</body>
</html>

Indstil form

Formparameteren definerer formen. Det kan tage værdicirklen eller ellipsen. Standardværdien er ellipse.

Følgende eksempel viser en radial gradient med form som en cirkel:

Eksempel

   #grad {
  background-image: radial-gradient(circle, red, yellow, green);
}

Prøv det selv →

<!DOCTYPE html>
<html>
<head>
<style>
#grad1 {
  height: 150px;
  width: 200px;
  background-color: red; /* For browsers that do not support gradients */
  background-image: radial-gradient(red, yellow, green);
}

#grad2 {
  height: 150px;
  width: 200px;
  background-color: red; /* For browsers that do not support gradients */
  background-image: radial-gradient(circle, red, yellow, green);
}
</style>
</head>
<body>

<h1>Radial Gradient - Shapes</h1>

<h2>Ellipse (this is default):</h2>
<div id="grad1"></div>

<h2><strong>Circle:</strong></h2>
<div id="grad2"></div>

</body>
</html>

Brug af søgeord i forskellige størrelser

Parameteren size definerer størrelsen af gradienten. Det kan tage fire værdier:

closest-side
farthest-side
closest-corner
farthest-corner

Eksempel

En radial gradient med nøgleord i forskellige størrelser:

   #grad1 {
  background-image: radial-gradient(closest-side at 60% 55%, red, yellow, 
black);
}

#grad2 {
      background-image: radial-gradient(farthest-side at 60% 
55%, red, yellow, black);
}

Prøv det selv →

<!DOCTYPE html>
<html>
<head>
<style>
#grad1 {
  height: 150px;
  width: 150px;
  background-color: red; /* For browsers that do not support gradients */
  background-image: radial-gradient(closest-side at 60% 55%, red, yellow, black);
}

#grad2 {
  height: 150px;
  width: 150px;
  background-color: red; /* For browsers that do not support gradients */
  background-image: radial-gradient(farthest-side at 60% 55%, red, yellow, black);
}

#grad3 {
  height: 150px;
  width: 150px;
  background-color: red; /* For browsers that do not support gradients */
  background-image: radial-gradient(closest-corner at 60% 55%, red, yellow, black);
}

#grad4 {
  height: 150px;
  width: 150px;
  background-color: red; /* For browsers that do not support gradients */
  background-image: radial-gradient(farthest-corner at 60% 55%, red, yellow, black);
}
</style>
</head>
<body>

<h1>Radial Gradients - Different size keywords</h1>

<h2>closest-side:</h2>
<div id="grad1"></div>

<h2>farthest-side:</h2>
<div id="grad2"></div>

<h2>closest-corner:</h2>
<div id="grad3"></div>

<h2>farthest-corner (default):</h2>
<div id="grad4"></div>

</body>
</html>

Gentagelse af en radial gradient

Funktionen repeating-radial-gradient() bruges til at gentage radiale gradienter:

Eksempel

En gentagen radial gradient:

   #grad {
  background-image: 
repeating-radial-gradient(red, yellow 10%, green 15%);
}

Prøv det selv →

<!DOCTYPE html>
<html>
<head>
<style>
#grad1 {
  height: 150px;
  width: 200px;
  background-color: red; /* For browsers that do not support gradients */
  background-image: repeating-radial-gradient(red, yellow 10%, green 15%);
}
</style>
</head>
<body>

<h1>Repeating Radial Gradient</h1>

<div id="grad1"></div>

</body>
</html>