border-collapse
The border-collapse
CSS property sets whether cells inside a <table>
have shared or separate borders.
Try it
When cells are collapsed, the border-style
value of inset
behaves like ridge
, and outset
behaves like groove
.
When cells are separated, the distance between cells is defined by the border-spacing
property.
Syntax
css
/* Keyword values */
border-collapse: collapse;
border-collapse: separate;
/* Global values */
border-collapse: inherit;
border-collapse: initial;
border-collapse: revert;
border-collapse: revert-layer;
border-collapse: unset;
The border-collapse
property is specified as a single keyword, which may be chosen from the list below.
Values
collapse
-
Adjacent cells have shared borders (the collapsed-border table rendering model).
separate
-
Adjacent cells have distinct borders (the separated-border table rendering model).
Formal definition
Initial value | separate |
---|---|
Applies to | table and inline-table elements |
Inherited | yes |
Computed value | as specified |
Animation type | discrete |
Formal syntax
border-collapse =
separate |
collapse
Examples
A colorful table of browser engines
HTML
html
<table class="separate">
<caption>
<code>border-collapse: separate</code>
</caption>
<tbody>
<tr>
<th>Browser</th>
<th>Layout Engine</th>
</tr>
<tr>
<td class="fx">Firefox</td>
<td class="gk">Gecko</td>
</tr>
<tr>
<td class="ed">Edge</td>
<td class="tr">EdgeHTML</td>
</tr>
<tr>
<td class="sa">Safari</td>
<td class="wk">Webkit</td>
</tr>
<tr>
<td class="ch">Chrome</td>
<td class="bk">Blink</td>
</tr>
<tr>
<td class="op">Opera</td>
<td class="bk">Blink</td>
</tr>
</tbody>
</table>
<table class="collapse">
<caption>
<code>border-collapse: collapse</code>
</caption>
<tbody>
<tr>
<th>Browser</th>
<th>Layout Engine</th>
</tr>
<tr>
<td class="fx">Firefox</td>
<td class="gk">Gecko</td>
</tr>
<tr>
<td class="ed">Edge</td>
<td class="tr">EdgeHTML</td>
</tr>
<tr>
<td class="sa">Safari</td>
<td class="wk">Webkit</td>
</tr>
<tr>
<td class="ch">Chrome</td>
<td class="bk">Blink</td>
</tr>
<tr>
<td class="op">Opera</td>
<td class="bk">Blink</td>
</tr>
</tbody>
</table>
CSS
css
.collapse {
border-collapse: collapse;
}
.separate {
border-collapse: separate;
}
table {
display: inline-table;
margin: 1em;
border: dashed 5px;
}
table th,
table td {
border: solid 3px;
}
.fx {
border-color: orange blue;
}
.gk {
border-color: black red;
}
.ed {
border-color: blue gold;
}
.tr {
border-color: aqua;
}
.sa {
border-color: silver blue;
}
.wk {
border-color: gold blue;
}
.ch {
border-color: red yellow green blue;
}
.bk {
border-color: navy blue teal aqua;
}
.op {
border-color: red;
}
Result
Specifications
Specification |
---|
Cascading Style Sheets Level 2 Revision 2 (CSS 2.2) Specification # propdef-border-collapse |
Browser compatibility
BCD tables only load in the browser
See also
border-spacing
,border-style
- The
border-collapse
property alters the appearance of the<table>
HTML element.