the stroke-opacity attribute specifies the opacity of the outline on the current object. Its default value is 1.
As a presentation attribute, it also can be used as a property directly inside a CSS stylesheet
| Categories | Presentation attribute |
|---|---|
| Value | <opacity-value> | inherit |
| Animatable | Yes |
| Normative document | SVG 1.1 (2nd Edition) |
<svg width="120px" height="120px" viewBox="0 0 120 120"> <rect x="10" y="10" width="100" height="100"/> </svg>
rect{
fill:#b4da55;
stroke:#000;
stroke-width:10px;
stroke-opacity:0.3;
} The following elements can use the stroke-opacity attribute
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https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/stroke-opacity