CSS stroke-linecap Property

The stroke-linecap property sets the starting and ending points of a border on element.

The presentation attribute will be overridden: e.g. <path stroke-linecap=”round” … />. The inline style won’t be overridden: e.g. <path style=”stroke-linecap: round;” …/>.

Initial Value	butt
Applies to	Shapes and text content elements.
Inherited	Yes.
Animatable	No.
Version	SVG 1.1 Specification
DOM Syntax	Object.strokeLinecap = “round”;

Syntax

stroke-linecap: butt | square | round | initial | inherit;

Example of the stroke-linecap property:

<!DOCTYPE html>
<html>
  <head>
    <title>Title of the document</title>
  </head>
  <body>
    <h2>Stroke-linecap property example</h2>
    <svg viewBox="0 0 6 4">
      <!-- Effect of the "butt" value -->
      <path d="M1,1 h4" stroke="#8ebf42"
        stroke-linecap="butt" />
      <!-- Effect of the "butt" value on a zero length path -->
      <path d="M3,3 h0" stroke="#8ebf42"
        stroke-linecap="butt" />
      <!--
        the following pink lines highlight the
        position of the path for each stroke
        -->
      <path d="M1,1 h4" stroke="#1c87c9" stroke-width="0.05" />
      <circle cx="1" cy="1" r="0.05" fill="#1c87c9" />
      <circle cx="5" cy="1" r="0.05" fill="#1c87c9" />
      <circle cx="3" cy="3" r="0.05" fill="#1c87c9" />
    </svg>
  </body>
</html>

Result

Example of the stroke-linecap property with the “round” value:

<!DOCTYPE html>
<html>
  <head>
    <title>Title of the document</title>
  </head>
  <body>
    <h2>Stroke-linecap property example</h2>
    <svg viewBox="0 0 6 4">
      <!-- Effect of the "round" value -->
      <path d="M1,1 h4" stroke="#8ebf42" stroke-linecap="round" />
      <!-- Effect of the "round" value on a zero length path -->
      <path d="M3,3 h0" stroke="#8ebf42" stroke-linecap="round" />
      <!--
      the following pink lines highlight the
      position of the path for each stroke
      -->
      <path d="M1,1 h4" stroke="#1c87c9" stroke-width="0.05" />
      <circle cx="1" cy="1" r="0.05" fill="#1c87c9" />
      <circle cx="5" cy="1" r="0.05" fill="#1c87c9" />
      <circle cx="3" cy="3" r="0.05" fill="#1c87c9" />
    </svg>
  </body>
</html>

Try it Yourself »

Example of the stroke-linecap property with the “square” value:

<!DOCTYPE html>
<html>
  <head>
    <title>Title of the document</title>
  </head>
  <body>
    <h2>Stroke-linecap property example</h2>
    <svg viewBox="0 0 6 4">
      <!-- Effect of the "square" value -->
      <path d="M1,1 h4" stroke="#8ebf42" stroke-linecap="square" />
      <!-- Effect of the "square" value on a zero length path -->
      <path d="M3,3 h0" stroke="#8ebf42" stroke-linecap="square" />
      <!--
        the following pink lines highlight the
        position of the path for each stroke
        -->
      <path d="M1,1 h4" stroke="#1c87c9" stroke-width="0.05" />
      <circle cx="1" cy="1" r="0.05" fill="#1c87c9" />
      <circle cx="5" cy="1" r="0.05" fill="#1c87c9" />
      <circle cx="3" cy="3" r="0.05" fill="#1c87c9" />
    </svg>
  </body>
</html>

Values

Value	Description
butt	Ends the stroke with a sharp angle. On 0 length subpath, the path will not be rendered. This is the default value of this property.
square	Extends the stroke beyond the length of the path.
round	Makes the start and end points round.
initial	Makes the property use its default value.
inherit	Inherits the property from its parents element.

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