CSS visual property analysis: box-shadow, text-shadow and filter

CSS visual attribute analysis: box-shadow, text-shadow and filter

Introduction:
In web design and development, CSS can be used to add elements to Various visual effects. This article will focus on the three important properties of box-shadow, text-shadow and filter in CSS, including their usage and effect display. Below we analyze these three properties in detail.

1. box-shadow (box shadow)
The box-shadow attribute is used to add one or more box shadow effects to an element. The following is a code example using the box-shadow attribute:

.box {
   box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.3);
}

The above code will create a box shadow with a size of 2 pixels, an offset of 2 pixels, and a color of rgba(0, 0, 0, 0.3). You can customize the box shadow effect by modifying these four values.

2. text-shadow (text shadow)
The text-shadow attribute is used to add a shadow effect to text elements. The following is a code example using the text-shadow attribute:

.text {
   text-shadow: 2px 2px 2px rgba(0, 0, 0, 0.5);
}

The above code will create a text shadow with a size of 2 pixels, an offset of 2 pixels, and a color of rgba(0, 0, 0, 0.5). Likewise, you can customize the text shadow effect by modifying these four values.

3. filter (filter)
The filter attribute is used to add various image effects to elements, including blur, brightness, contrast, etc. The following are some code examples using the filter attribute:

.filter {
   filter: blur(2px);
}

.filter {
   filter: brightness(120%);
}

.filter {
   filter: contrast(200%);
}

The above code shows the three filter effects of blur, brightness and contrast. By modifying parameter values, you can obtain different filter effects.

Conclusion:
By using box-shadow, text-shadow and filter attributes, we can add various visual effects to web design. By customizing parameter values, different shadow effects and filter effects can be achieved. These attributes can be widely used on buttons, titles, images and other elements to improve the visual appeal and user experience of web pages.

(The above is a code example. The actual effect may vary depending on the browser. Please make corresponding adjustments according to your needs and browser compatibility.)

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