border-collapse
The border-collapse
CSS property sets whether cells inside a <table>
have shared or separate borders.
When cells are collapsed, the border-style
value of inset
behaves like groove
, and outset
behaves like ridge
.
When cells are separated, the distance between cells is defined by the border-spacing
property.
Syntax
/* Keyword values */
border-collapse: collapse;
border-collapse: separate;
/* Global values */
border-collapse: inherit;
border-collapse: initial;
border-collapse: revert;
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
collapse | separate
Examples
A colorful table of browser engines
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
.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 1 (CSS 2.1) 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.