--- title: stroke-dashoffset slug: Web/SVG/Attribute/stroke-dashoffset translation_of: Web/SVG/Attribute/stroke-dashoffset --- <div>{{SVGRef}}</div> <p><strong><code>stroke-dashoffset</code></strong>属性は、関連する破線をレンダリングするうえで、オフセットを定義するプレゼンテーション属性です。</p> <p class="note"><strong>Note:</strong> プレゼンテーション属性として、<strong><code>stroke-dashoffset</code></strong>はCSSプロパティとして使用することができます。</p> <p>プレゼンテーション属性として、それは、いくつかの要素に適用させることができますが、次の12個の要素にのみ効果があります。</p> <p> {{SVGElement('altGlyph')}}, {{SVGElement('circle')}}, {{SVGElement('ellipse')}}, {{SVGElement('path')}}, {{SVGElement('line')}}, {{SVGElement('polygon')}}, {{SVGElement('polyline')}}, {{SVGElement('rect')}}, {{SVGElement('text')}}, {{SVGElement('textPath')}}, {{SVGElement('tref')}}, and {{SVGElement('tspan')}}</p> <div id="topExample"> <div class="hidden"> <pre class="brush: css notranslate">html,body,svg { height:100% }</pre> </div> <pre class="brush: html notranslate"><svg viewBox="-3 0 33 10" xmlns="http://www.w3.org/2000/svg"> <!-- No dash array --> <line x1="0" y1="1" x2="30" y2="1" stroke="black" /> <!-- No dash offset --> <line x1="0" y1="3" x2="30" y2="3" stroke="black" stroke-dasharray="3 1" /> <!-- The start of the dash array computation is pulled by 3 user units --> <line x1="0" y1="5" x2="30" y2="5" stroke="black" stroke-dasharray="3 1" stroke-dashoffset="3" /> <!-- The start of the dash array computation is pushed by 3 user units --> <line x1="0" y1="7" x2="30" y2="7" stroke="black" stroke-dasharray="3 1" stroke-dashoffset="-3" /> <!-- The start of the dash array computation is pulled by 1 user units which ends up in the same rendering as the previous example --> <line x1="0" y1="9" x2="30" y2="9" stroke="black" stroke-dasharray="3 1" stroke-dashoffset="1" /> <!-- the following red lines highlight the offset of the dash array for each line --> <path d="M0,5 h-3 M0,7 h3 M0,9 h-1" stroke="rgba(255,0,0,.5)" /> </svg> </pre> <p>{{EmbedLiveSample('topExample', '100%', 200)}}</p> </div> <h2 id="Usage_notes">Usage notes</h2> <table class="standard-table"> <tbody> <tr> <th scope="row">Value</th> <td><strong><a href="/en/SVG/Content_type#Percentage" title="en/SVG/Content_type#Percentage"><percentage></a></strong> | <strong><a href="/en/SVG/Content_type#Length" title="en/SVG/Content_type#Length"><span><length></span></a></strong></td> </tr> <tr> <th scope="row">Default value</th> <td><code>0</code></td> </tr> <tr> <th scope="row">Animatable</th> <td>Yes</td> </tr> </tbody> </table> <p>The offset is usually expressed in user units resolved against the {{SVGAttr('pathLength')}} but if a <a href="/en/SVG/Content_type#Percentage" title="en/SVG/Content_type#Percentage"><percentage></a> is used, the value is resolved as a percentage of the current viewport.</p> <h2 id="Browser_Compatibility" name="Browser_Compatibility">Browser compatibility</h2> <p>{{Compat("svg.attributes.presentation.stroke-dashoffset")}}</p> <h2 id="Specification">Specification</h2> <table class="standard-table"> <thead> <tr> <th scope="col">Specification</th> <th scope="col">Status</th> <th scope="col">Comment</th> </tr> </thead> <tbody> <tr> <td>{{SpecName("SVG2", "painting.html#StrokeDashoffsetProperty", "stroke-dashoffset")}}</td> <td>{{Spec2("SVG2")}}</td> <td>Definition for shapes and texts</td> </tr> <tr> <td>{{SpecName("SVG1.1", "painting.html#StrokeDashoffsetProperty", "stroke-dashoffset")}}</td> <td>{{Spec2("SVG1.1")}}</td> <td>Initial definition for shapes and texts</td> </tr> </tbody> </table>