CSS | stroke-opacity Property
Last Updated :
22 Nov, 2019
The stroke-opacity property is used to set the opacity of the color or pattern that is applied to the stroke of a shape. A decimal or percentage value could be used to make the stroke visible, invisible or semi-transparent.
Syntax:
stroke-opacity: [0-1] | <percentage>
Parameters: This property accepts two types of parameters as mentioned above and described below:
- [0-1]: It is used to set the opacity in a decimal value from 0 to 1. A value of 0 would mean that the stroke is completely transparent and invisible. A value of 1 means that the stroke is fully opaque and visible. A decimal value between these values two would give a semi-transparent stroke.
- percentage: This is used to set the opacity in a percentage values. A value of 0% would mean that the stroke is completely transparent and invisible. A value of 100% means that the stroke is fully opaque and visible. A percentage value between these two values would give a semi-transparent stroke.
Below examples will illustrates the stroke-opacity property in CSS:
Example 1: This example uses a value 0 to 1 to set the stroke opacity.
<!DOCTYPE html>
< html >
< head >
< title >
CSS | stroke-opacity property
</ title >
< style >
.stroke1 {
/* completely visible stroke */
stroke-opacity: 1.0;
stroke: green;
stroke-width: 20px;
}
.stroke2 {
/* 50-50 visible transparent */
stroke-opacity: 0.5;
stroke: green;
stroke-width: 20px;
}
.stroke3 {
/* 25-75 visible transparent */
stroke-opacity: 0.25;
stroke: green;
stroke-width: 20px;
}
.stroke4 {
/* completely transparent stroke */
stroke-opacity: 0;
stroke: green;
stroke-width: 20px;
}
</ style >
</ head >
< body style = "text-align:center;" >
< h1 style = "color: green" >
GeeksforGeeks
</ h1 >
< b >
CSS | stroke-opacity
</ b >
< div class = "container" >
< svg width = "400px" >
< line class = "stroke1" x1 = "50"
x2 = "350" y1 = "20" y2 = "20" />
< line class = "stroke2" x1 = "50"
x2 = "350" y1 = "70" y2 = "70" />
< line class = "stroke3" x1 = "50"
x2 = "350" y1 = "120" y2 = "120" />
< line class = "stroke4" x1 = "50"
x2 = "350" y1 = "170" y2 = "170" />
</ svg >
</ div >
</ body >
</ html >
|
Output:
Example 2: This example uses percentage value to set the stroke opacity.
<!DOCTYPE html>
< html >
< head >
< title >
CSS | stroke-opacity property
</ title >
< style >
.stroke1 {
/* completely visible stroke */
stroke-opacity: 100%;
stroke: green;
stroke-width: 20px;
}
.stroke2 {
/* 50-50 visible transparent */
stroke-opacity: 50%;
stroke: green;
stroke-width: 20px;
}
.stroke3 {
/* 25-75 visible transparent */
stroke-opacity: 25%;
stroke: green;
stroke-width: 20px;
}
.stroke4 {
/* completely transparent stroke */
stroke-opacity: 0%;
stroke: green;
stroke-width: 20px;
}
</ style >
</ head >
< body style = "text-align:center;" >
< h1 style = "color: green" >
GeeksforGeeks
</ h1 >
< b >
CSS | stroke-opacity
</ b >
< div class = "container" >
< svg width = "400px" >
< line class = "stroke1" x1 = "50"
x2 = "350" y1 = "20" y2 = "20" />
< line class = "stroke2" x1 = "50"
x2 = "350" y1 = "70" y2 = "70" />
< line class = "stroke3" x1 = "50"
x2 = "350" y1 = "120" y2 = "120" />
< line class = "stroke4" x1 = "50"
x2 = "350" y1 = "170" y2 = "170" />
</ svg >
</ div >
</ body >
</ html >
|
Output:
Supported Browsers: The browsers supported by CSS stroke-opacity property are listed below:
- Chrome
- Internet Explorer 9
- Firefox
- Safari
- Opera
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