極客書

CSS3 - Gradients

漸變顯示兩種或兩種以上顏色的組合，如下所示;

Types of gradients

  • Linear Gradients(down/up/left/right/diagonally)
  • Radial Gradients

Linear gradients

線性漸變用於以線性格式（如從上到下）排列兩種或更多顏色。

Top to bottom

Live Demo 
<html>
   <head>
      <style>
         #grad1 {
            height: 100px;
            background: -webkit-linear-gradient(pink,green);
            background: -o-linear-gradient(pink,green);
            background: -moz-linear-gradient(pink,green); 
            background: linear-gradient(pink,green); 
         }
      </style>
   </head>

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

它將產生以下結果&負;

Left to right

Live Demo 
<html>
   <head>
      <style>
         #grad1 {
            height: 100px;
            background: -webkit-linear-gradient(left, red , blue);
            background: -o-linear-gradient(right, red, blue); 
            background: -moz-linear-gradient(right, red, blue);
            background: linear-gradient(to right, red , blue);
         }
      </style>
   </head>

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

它將產生以下結果&負;

Diagonal

對角線從左上角和右上角開始。

Live Demo 
<html>
   <head>
      <style>
         #grad1 {
            height: 100px;
            background: -webkit-linear-gradient(left top, red , blue); 
            background: -o-linear-gradient(bottom right, red, blue); 
            background: -moz-linear-gradient(bottom right, red, blue);
            background: linear-gradient(to bottom right, red , blue); 
         }
      </style>
   </head>

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

它將產生以下結果&負;

Multi color

Live Demo 
<html>
   <head>
      <style>
         #grad2 {
            height: 100px;
            background: -webkit-linear-gradient(red, orange, yellow, red, blue, green,pink); 
            background: -o-linear-gradient(red, orange, yellow, red, blue, green,pink); 
            background: -moz-linear-gradient(red, orange, yellow, red, blue, green,pink); 
            background: linear-gradient(red, orange, yellow, red, blue, green,pink); 
         }
      </style>
   </head>

   <body>
      <div id = "grad2"></div>
   </body>
</html>

它將產生以下結果&負;

CSS3 Radial Gradients

徑向梯度出現在中心。

Live Demo 
<html>
   <head>
      <style>
         #grad1 {
            height: 100px;
            width: 550px;
            background: -webkit-radial-gradient(red 5%, green 15%, pink 60%); 
            background: -o-radial-gradient(red 5%, green 15%, pink 60%); 
            background: -moz-radial-gradient(red 5%, green 15%, pink 60%); 
            background: radial-gradient(red 5%, green 15%, pink 60%); 
         }
      </style>
   </head>

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

它將產生以下結果&負;

CSS3 Repeat Radial Gradients

Live Demo 
<html>
   <head>
      <style>
         #grad1 {
            height: 100px;
            width: 550px;
            background: -webkit-repeating-radial-gradient(blue, yellow 10%, green 15%); 
            background: -o-repeating-radial-gradient(blue, yellow 10%, green 15%);
            background: -moz-repeating-radial-gradient(blue, yellow 10%, green 15%);
            background: repeating-radial-gradient(blue, yellow 10%, green 15%); 
         }
      </style>
   </head>

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

它將產生以下結果&負;