What is the code for shadow style in html

青灯夜游
Release: 2022-09-23 16:32:13
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Style code: 1. Text shadow style "text-shadow: h-shadow v-shadow blur color;"; 2. Border shadow style "box-shadow: h-shadow v-shadow blur spread color inset ;"; 3. Picture shadow style "filter:drop-shadow(h-shadow v-shadow blur spread color);".

What is the code for shadow style in html

The operating environment of this tutorial: Windows 7 system, CSS3&&HTML5 version, Dell G3 computer.

In HTML, there are three ways to add shadow styles to elements:

  • Text shadow: use the text-shadow attribute

  • Border shadow: use the box-shadow attribute

  • Picture shadow: use the filter attribute (needs to be used with the drop-shadow() function)

1. Text shadow style

In HTML, you can use the text-shadow attribute to implement shadowed text. The text-shadow attribute is applied to shadow text. .

Syntax

text-shadow: h-shadow v-shadow blur color;
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Value Description
h-shadow Required. The position of the horizontal shadow. Negative values are allowed.
v-shadow Required. The position of the vertical shadow. Negative values are allowed.
blur Optional. Blurred distance.
color Optional. The color of the shadow.

Note: The text-shadow property connects one or more shadow text. The property is a shadow, specifying every 2 or 3 length values and an optional color value separated by commas. The expired length is 0.

Example:

    设置文本阴影效果  

文本阴影!

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Rendering:

What is the code for shadow style in html

2. Border shadow style

In html, you can use the box-shadow attribute to implement a border with a shadow style. The box-shadow property can set one or more drop-down shadow boxes.

Syntax

box-shadow: h-shadow v-shadow blur spread color inset;
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Value Description
h-shadow Required. The position of the horizontal shadow. Negative values allowed
v-shadow Required. The position of the vertical shadow. Negative values allowed
blur Optional. Fuzzy distance
#spread Optional. The size of the shadow
#color is optional. The color of the shadow.
inset Optional. Change shadow to inner shadow from outer shadow (at start)

注意:boxShadow 属性把一个或多个下拉阴影添加到框上。该属性是一个用逗号分隔阴影的列表,每个阴影由 2-4 个长度值、一个可选的颜色值和一个可选的 inset 关键字来规定。省略长度的值是 0。

示例:

    
边框阴影
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效果图:

What is the code for shadow style in html

3、图片阴影样式

在html中,可使用filter属性来实现带阴影样式的边框。

filter 属性定义了元素(通常是What is the code for shadow style in html)的可视效果,当和drop-shadow()函数一起使用,可给图像设置一个阴影效果。

filter:drop-shadow(h-shadow v-shadow blur spread color);
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阴影是合成在图像下面,可以有模糊度的,可以以特定颜色画出的遮罩图的偏移版本。 函数接受 (在CSS3背景中定义)类型的值,除了"inset"关键字是不允许的。该函数与已有的box-shadow box-shadow属性很相似;不同之处在于,通过滤镜,一些浏览器为了更好的性能会提供硬件加速。 参数如下:

  • h-shadow v-shadow (必须)

  • 这是设置阴影偏移量的两个 值. 设定水平方向距离. 负值会使阴影出现在元素左边. 设定垂直距离.负值会使阴影出现在元素上方。查看 可能的单位.

  • 如果两个值都是0, 则阴影出现在元素正后面 (如果设置了 and/or ,会有模糊效果).

  • (可选)

  • 这是第三个code> 值. 值越大,越模糊,则阴影会变得更大更淡.不允许负值 若未设定,默认是0 (则阴影的边界很锐利).

  • (可选)

  • 这是第四个 值. 正值会使阴影扩张和变大,负值会是阴影缩小.若未设定,默认是0 (阴影会与元素一样大小).

  • 注意: Webkit, 以及一些其他浏览器 不支持第四个长度,如果加了也不会渲染。

  • (可选)

  • 查看 该值可能的关键字和标记。若未设定,颜色值基于浏览器。在Gecko (Firefox), Presto (Opera)和Trident (Internet Explorer)中, 会应用colorcolor属性的值。另外, 如果颜色值省略,WebKit中阴影是透明的。

    

给图像设置一个阴影效果:

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What is the code for shadow style in html

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