files/en-us/web/svg/reference/attribute/x1/index.md
The x1 attribute is used to specify the first x-coordinate for drawing an SVG element that requires more than one coordinate. Elements that only need one coordinate use the {{SVGAttr("x")}} attribute instead.
You can use this attribute with the SVG elements described in the sections below.
<line>For {{SVGElement('line')}}, x1 defines the x coordinate of the starting point of the line.
html,
body,
svg {
height: 100%;
}
<svg viewBox="0 0 10 10" xmlns="http://www.w3.org/2000/svg">
<line x1="1" x2="5" y1="1" y2="9" stroke="red" />
<line x1="5" x2="5" y1="1" y2="9" stroke="green" />
<line x1="9" x2="5" y1="1" y2="9" stroke="blue" />
</svg>
{{EmbedLiveSample('line', '100%', 200)}}
<linearGradient>For {{SVGElement('linearGradient')}}, x1 defines the x coordinate of the starting point of the gradient vector used to map the gradient stop values. The exact behavior of this attribute is influenced by the {{SVGAttr('gradientUnits')}} attributes
html,
body,
svg {
height: 100%;
}
<svg viewBox="0 0 20 10" xmlns="http://www.w3.org/2000/svg">
<!--
By default the gradient vector start at the left
bounding limit of the shape it is applied to
-->
<linearGradient x1="0%" id="g0">
<stop offset="0" stop-color="black" />
<stop offset="100%" stop-color="red" />
</linearGradient>
<rect x="1" y="1" width="8" height="8" fill="url(#g0)" />
<!--
Here the gradient vector start at 80% of the left
bounding limit of the shape it is applied to
-->
<linearGradient x1="80%" id="g1">
<stop offset="0" stop-color="black" />
<stop offset="100%" stop-color="red" />
</linearGradient>
<rect x="11" y="1" width="8" height="8" fill="url(#g1)" />
</svg>
{{EmbedLiveSample('linearGradient', '100%', 200)}}
html,
body,
svg {
height: 100%;
}
<svg viewBox="0 0 25 25" xmlns="http://www.w3.org/2000/svg">
<line x1="2" x2="22" y1="5" y2="20" stroke="red" />
<line x1="12" x2="22" y1="5" y2="20" stroke="green" />
<line x1="22" x2="22" y1="5" y2="20" stroke="blue" />
</svg>
{{EmbedLiveSample("Examples", '100%', 200)}}
{{Specifications}}
{{Compat}}