Detailed introduction to layer shadow and text shadow effects using CSS3

box-shadow layer shadow

box-shadow: Shadow type X horizontal offset (can take positive and negative values) Y vertical offset (can take positive and negative values) Shadow size Shadow extended shadow color value
The shadow type can be omitted, the default is outer projection, when its value is inset, it is the inner shadow effect.
X horizontal offset and Y vertical offset can take positive and negative values. When X is negative, it is projected on the left, and when it is positive, it is projected on the right. When Y is negative, it is projected on top, when it is positive, it is projected on the bottom.
The shadow size and expansion are the same as those in PS.

Browser compatibility:
Different browsers have different compatibility. The mozilla kernel browser is written as follows (but the new version of Firefox does not need to be added):
-moz-box-shadow: Shadow type
-webkit-box-shadow:Shadow type ：

<p class="shadow"></p>   
.shadow{   
 width:200px;   
 height:50px;   
 box-shadow:3px 3px 3px 3px #000;   
 /*-moz-box-shadow:3px 3px 3px 3px #000;    //以火狐为代表的mozilla内核浏览器，火狐现在的版本已经支持这个属性，所以不用再加-moz*/
 -webkit-box-shadow:3px 3px 3px 3px #000;   
}

Rendering:

Change the box-shadow projection type to inset, rendering:

Example 2:

<p class="shadow"></p>   
.shadow{   
 width:200px;   
 height:50px;   
 box-shadow:0 -5px 5px 0 red,5px 0 5px 0 yellow,0 5px 5px 0 green,-5px 0 5px 0 blue;   
 /*-moz-box-shadow:0 -5px 5px 0 red,5px 0 5px 0 yellow,0 5px 5px 0 green,-5px 0 5px 0 blue;    //以火狐为代表的mozilla内核浏览器，火狐现在的版本已经支持这个属性，所以不用再加-moz*/
 -webkit-box-shadow:0 -5px 5px 0 red,5px 0 5px 0 yellow,0 5px 5px 0 green,-5px 0 5px 0 blue;   
}

Rendering:

text-shadow text-shadow

We discussed above about css3 layer shadow box-shadow to achieve the effect of layer shadow. Today we will learn together how to achieve the effect of text shadow. Another attribute of CSS3, text-shadow, will be used. These two effects enhance the texture of the layer and text respectively, creating a three-dimensional effect.

Syntax:

text-shadow ： none | <length> none | [<shadow>, ] * <shadow> 或none | <color> [, <color> ]*

text-shadow: Displacement on the X-axis (positive or negative), displacement on the Y-axis (positive or negative) (can be negative), the width of the shadow, the color value of the shadow

Description:

is similar to the layer shadow, it can also apply one or more sets of shadow effects to the same object , separated by commas. The X-axis offset can be positive or negative. When X is positive, it is offset to the right, and when it is negative, it is offset to the left. The Y-axis offset can be positive or negative. When X is positive, it is offset downward, and when it is negative, it is offset upward. The color value of the shadow can be #xxx, rgb, or rgba transparent color.

Example: text-shadow

<h1 id="雨打浮萍">雨打浮萍</h1>

The display effect is as follows:

Comparison box-shadow

<h2 id="专注于web前端开发">专注于web前端开发</h2>

The effect is as follows:

The display effect is as follows:

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