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---
title: border-bottom-right-radius
slug: Web/CSS/border-bottom-right-radius
translation_of: Web/CSS/border-bottom-right-radius
---
<div>{{CSSRef}}</div>
<p>The <strong><code>border-bottom-right-radius</code></strong> CSS property sets the rounding of the bottom-right corner of the element.</p>
<pre class="brush:css no-line-numbers">/* The corner is a circle */
/* border-bottom-right-radius: <em>radius</em> */
border-bottom-right-radius: 3px;
/* Percentage values */
border-bottom-right-radius: 20%; /* corner of a circle if box is a square or else corner of a rectangle */
border-bottom-right-radius: 20% 20%; /* same as above */ /* 20% of horizontal(width) and vertical(height) */
border-bottom-right-radius: 20% 10%; /* 20% of horizontal(width) and 10% of vertical(height) */
/*The corner is an ellipsis */
/* border-bottom-right-radius: horizontal vertical */
border-bottom-right-radius: 0.5em 1em;
border-bottom-right-radius: inherit;</pre>
<p>The rounding can be a circle or an ellipse, or if one of the value is <code>0</code> no rounding is done and the corner is square.</p>
<div style="text-align: center;"><img alt="border-bottom-right-radius.png" class="default internal" src="/@api/deki/files/6134/=border-bottom-right-radius.png"></div>
<p>A background, being an image or a color, is clipped at the border, even a rounded one; the exact location of the clipping is defined by the value of the {{cssxref("background-clip")}} property.</p>
<div class="note">If the value of this property is not set in a {{cssxref("border-radius")}} shorthand property that is applied to the element after the <code>border-bottom-right-radius</code> CSS property, the value of this property is then reset to its initial value by the <a href="/en-US/docs/Web/CSS/Shorthand_properties">shorthand property</a>.</div>
<p>{{cssinfo}}</p>
<h2 id="Syntax">Syntax</h2>
<p>With one value:</p>
<ul>
<li>the value is a {{cssxref("<length>")}} or a {{cssxref("<percentage>")}} denoting the radius of the circle to use for the border in that corner.</li>
</ul>
<p>With two values:</p>
<ul>
<li>the first value is a {{cssxref("<length>")}} or a {{cssxref("<percentage>")}} denoting the horizontal semi-major axis of the ellipsis to use for the border in that corner.</li>
<li>the second value is a {{cssxref("<percentage>")}} denoting the vertical semi-major axis of the ellipsis to use for the border in that corner.</li>
</ul>
<h3 id="Values">Values</h3>
<dl>
<dt><code><length-percentage></code></dt>
<dd>Denotes the size of the circle radius or the semi-major and semi-minor axes of the ellipsis. As absolute length it can be expressed in any unit allowed by the CSS {{cssxref("<length>")}} data type. Percentages for the horizontal axis refer to the width of the box, percentages for the vertical axis refer to the height of the box. Negative values are invalid.</dd>
</dl>
<h3 id="Formal_syntax">Formal syntax</h3>
{{csssyntax}}
<h2 id="Examples">Examples</h2>
<table class="standard-table">
<thead>
<tr>
<th>Live example</th>
<th>Code</th>
</tr>
</thead>
<tbody>
<tr>
<td style="padding: 1.5em;">
<div style="background-color: lightgreen; border: solid 1px black; border-bottom-right-radius: 40px 40px; width: 100px; height: 100px;">
<div class="hidden">.</div>
</div>
</td>
<td>An arc of circle is used as the border
<pre class="brush: css">
div {
border-bottom-right-radius: 40px 40px;
}
</pre>
</td>
</tr>
<tr>
<td style="padding: 1.5em;">
<div style="background-color: lightgreen; border: solid 1px black; border-bottom-right-radius: 40px 20px; width: 100px; height: 100px;">
<div class="hidden">.</div>
</div>
</td>
<td>An arc of ellipse is used as the border
<pre class="brush: css">
div {
border-bottom-right-radius: 40px 20px;
}
</pre>
</td>
</tr>
<tr>
<td style="padding: 1.5em;">
<div style="background-color: lightgreen; border: solid 1px black; border-bottom-right-radius: 40%; width: 100px; height: 100px;">
<div class="hidden">.</div>
</div>
</td>
<td>The box is a square: an arc of circle is used as the border
<pre class="brush: css">
div {
border-bottom-right-radius: 40%;
}
</pre>
</td>
</tr>
<tr>
<td style="padding: 1.5em;">
<div style="background-color: lightgreen; border: solid 1px black; border-bottom-right-radius: 40%; width: 100px; height: 200px;">
<div class="hidden">.</div>
</div>
</td>
<td>The box is not a square: an arc of ellipse is used as the border
<pre class="brush: css">
div {
border-bottom-right-radius: 40%;
}
</pre>
</td>
</tr>
<tr>
<td style="padding: 1.5em;">
<div style="border: black 3px double; border-bottom-right-radius: 40%; height: 100px; width: 100px; background-color: rgb(250,20,70); background-clip: content-box;">
<div class="hidden">.</div>
</div>
</td>
<td>The background color is clipped at the border
<pre class="brush: css">
div {
border-bottom-right-radius:40%;
border-style: black 3px double;
background-color: rgb(250,20,70);
background-clip: content-box;
}
</pre>
</td>
</tr>
</tbody>
</table>
<h2 id="Specifications">Specifications</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('CSS3 Backgrounds', '#border-bottom-right-radius', 'border-bottom-right-radius')}}</td>
<td>{{Spec2('CSS3 Backgrounds')}}</td>
<td>Initial definition</td>
</tr>
</tbody>
</table>
<h2 id="Browser_compatibility">Browser compatibility</h2>
{{Compat("css.properties.border-bottom-right-radius")}}
<h2 id="See_also">See also</h2>
<p>The border-radius-related CSS properties: the CSS shorthand {{cssxref("border-radius")}}, the properties for the other corners: {{cssxref("border-top-right-radius")}}, {{cssxref("border-top-left-radius")}}, and {{cssxref("border-bottom-left-radius")}}.</p>
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