Rounded table corners CSS only
Seems to work fine in FF and Chrome (haven't tested any others) with separate borders: http://jsfiddle.net/7veZQ/3/
Edit: Here's a relatively clean implementation of your sketch:
table {
border-collapse:separate;
border:solid black 1px;
border-radius:6px;
}
td, th {
border-left:solid black 1px;
border-top:solid black 1px;
}
th {
background-color: blue;
border-top: none;
}
td:first-child, th:first-child {
border-left: none;
}
<table>
<thead>
<tr>
<th>blah</th>
<th>fwee</th>
<th>spoon</th>
</tr>
</thead>
<tr>
<td>blah</td>
<td>fwee</td>
<td>spoon</td>
</tr>
<tr>
<td>blah</td>
<td>fwee</td>
<td>spoon</td>
</tr>
</table>
http://jsfiddle.net/MuZzz/3577/
For me, the Twitter Bootstrap Solution looks good. It excludes IE < 9 (no round corners in IE 8 and lower), but that's O.K. I think, if you develop prospective Web-Apps.
CSS/HTML:
table {
border: 1px solid #ddd;
border-collapse: separate;
border-left: 0;
border-radius: 4px;
border-spacing: 0px;
}
thead {
display: table-header-group;
vertical-align: middle;
border-color: inherit;
border-collapse: separate;
}
tr {
display: table-row;
vertical-align: inherit;
border-color: inherit;
}
th, td {
padding: 5px 4px 6px 4px;
text-align: left;
vertical-align: top;
border-left: 1px solid #ddd;
}
td {
border-top: 1px solid #ddd;
}
thead:first-child tr:first-child th:first-child, tbody:first-child tr:first-child td:first-child {
border-radius: 4px 0 0 0;
}
thead:last-child tr:last-child th:first-child, tbody:last-child tr:last-child td:first-child {
border-radius: 0 0 0 4px;
}
<table>
<thead>
<tr><th>xxx</th><th>xxx</th><th>xxx</th></tr>
</thead>
<tbody>
<tr><td>xxx</td><td>xxx</td><td>xxx</td></tr>
<tr><td>xxx</td><td>xxx</td><td>xxx</td></tr>
<tr><td>xxx</td><td>xxx</td><td>xxx</td></tr>
<tr><td>xxx</td><td>xxx</td><td>xxx</td></tr>
<tr><td>xxx</td><td>xxx</td><td>xxx</td></tr>
</tbody>
</table>
You can play with that here (on jsFiddle)