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CSS Animation Guide: Teach you step by step how to create streamer effects

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Release： 2023-10-21 09:00:11

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CSS Animation Guide: Teach you step by step how to create streamer effects

CSS animation is an indispensable part of modern web design, it can add vividness and vitality to web pages. One of the common special effects is the streamer effect, which makes elements look like they are shining, which is very eye-catching. In this article, I will teach you step by step how to create streamer effects and provide specific code examples.

First, we need an HTML file to contain our animation effects. Create a new file in the code editor and add the following content:

<!DOCTYPE html>
<html>
<head>
    <link rel="stylesheet" type="text/css" href="styles.css">
</head>
<body>
    <div class="glow-effect"></div>
</body>
</html>

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In the above code, we have introduced a CSS file named styles.css and added the following content in # A div element with the glow-effect class is added to the ##body tag. Our streamer effect will be applied to this div element.

Next, we need to write CSS code in the

styles.css file to implement our streamer effects. Create a new file in the code editor and add the following content:

.glow-effect {
    width: 200px;
    height: 200px;
    background: linear-gradient(45deg, #ff0000, #00ff00, #0000ff);
    animation: glowing 2s infinite;
}

@keyframes glowing {
    0% {
        box-shadow: 0 0 5px #ff0000, 0 0 20px #ff0000;
    }
    50% {
        box-shadow: 0 0 20px #ff0000, 0 0 40px #ff0000;
    }
    100% {
        box-shadow: 0 0 5px #ff0000, 0 0 20px #ff0000;
    }
}

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In the above code, we first define a CSS selector with a class name of

.glow-effect. This selector will be used on the div element. We set its width and height to 200 pixels and fill it with a linear gradient background color. You can change the color of the streamer by modifying the color value in the background property.

Next, we added an animation called

glowing to the element using the animation attribute. This animation will last for 2 seconds and play in an infinite loop.

Then, we define an animation sequence named

glowing using the @keyframes keyword. This animation sequence contains three keyframes: 0%, 50% and 100%. In each keyframe, we set the box-shadow property, which is used to create the streamer effect. By modifying the values of these properties, you can adjust the size and position of the streamer.

Save the file and open the HTML file in the browser, you will see a square element with a streamer effect. It will continue to flash and glow.

Summary:

In this article, we demonstrate how to create a CSS animation with streamer effects by teaching you step by step. We defined the background color of the element by setting the
linear-gradient property, and created the streamer effect using the box-shadow property. An animation sequence is defined using the @keyframes keyword and applied to the element using the animation attribute. You can adjust the values in the code to customize your own streamer effects according to your needs.

Please note that browser versions that support CSS animation may vary. Please make sure that your browser supports CSS animation features.

I hope this article will help you understand and use CSS animations. Wish you create attractive streamer effects in your web design!

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