Prevent angled borders in highlighted table - html

Question

Consider the following setup:
$(function() {
var $cols = $("td:nth-child(2), th:nth-child(2)");
$cols.hover(function() {
$cols.addClass("highlight");
}, function() {
$cols.removeClass("highlight");
});
});
div {
background: #edf0f1;
padding: 20px;
}
table {
table-layout: fixed;
width: 500px;
border-collapse: separate;
border-spacing: 0;
}
td {
padding: 10px;
background-color: #fff;
border: 1px solid #edf0f1;
border-right-width: 10px;
border-left-width: 10px;
}
td.highlight,
th.highlight {
border-right-color: black;
border-left-color: black;
}
tr:last-child td {
border-bottom-width: 10px;
}
tr:last-child td.highlight {
border-bottom-color: black;
}
th {
border: 1px solid #edf0f1;
border-top-width: 10px;
border-right-width: 10px;
border-left-width: 10px;
}
th.highlight {
border-top: 10px solid black;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div>
<table>
<thead>
<tr>
<th>Important</th>
<th>Information</th>
<th>Interchange</th>
</tr>
</thead>
<tbody>
<tr>
<td>Hello world, how are you today</td>
<td>again</td>
<td>and we're done</td>
</tr>
<tr>
<td>More things</td>
<td>Cow level is real!!1111</td>
<td>over 9000%</td>
</tr>
</tbody>
</table>
</div>
As you can see, the highlighted table shows ugly "arrows" from the borders upon hover:
How can I get rid of those?

Answer 1

Here, try this.. the larger the border is, the more pronounced the angle is. I changed the border size to 0px
fiddle: https://jsfiddle.net/uqdebsxp/
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div>
<table>
<thead>
<tr>
<th>Important</th>
<th>Information</th>
<th>Interchange</th>
</tr>
</thead>
<tbody>
<tr>
<td>Hello world</td>
<td>again</td>
<td>and we're done</td>
</tr>
<tr>
<td>Hello world</td>
<td>again</td>
<td>and we're done</td>
</tr>
<tr>
<td>More things to come</td>
<td>over 9000%</td>
<td>Cow level is real!</td>
</tr>
</tbody>
</table>
</div>
css
div {
background: #edf0f1;
padding: 20px;
}
table {
table-layout: fixed;
width: auto;
border-collapse: separate;
border-spacing: 0;
}
td {
padding: 10px;
background-color: #fff;
border: 0px solid #edf0f1;
border-right-width: 10px;
border-left-width: 10px;
}
td.highlight,
th.highlight {
border-right-color: black;
border-left-color: black;
}
tr:last-child td {
border-bottom-width: 10px;
}
tr:last-child td.highlight {
border-bottom-color: black;
}
th {
border: 0px solid #edf0f1;
border-top-width: 10px;
border-right-width: 10px;
border-left-width: 10px;
}
th.highlight {
border-top: 10px solid black;
}

Answer 2

You'll need to manually remove borders on hovered items in a columns, using this CSS:
$(function() {
var $cols = $("td:nth-child(2), th:nth-child(2)");
$cols.hover(function() {
$cols.addClass("highlight");
}, function() {
$cols.removeClass("highlight");
});
});
div {
background: #edf0f1;
padding: 20px;
}
table {
table-layout: fixed;
width: auto;
border-collapse: separate;
border-spacing: 0;
}
td {
padding: 10px;
background-color: #fff;
border: 1px solid #edf0f1;
border-right-width: 10px;
border-left-width: 10px;
}
td.highlight,
th.highlight {
border-right-color: black;
border-left-color: black;
}
tr:last-child td {
border-bottom-width: 10px;
}
th {
border: 1px solid #edf0f1;
border-top-width: 10px;
border-right-width: 10px;
border-left-width: 10px;
}
/* New CSS */
tbody tr:first-child > td.highlight {
border-bottom: 1px solid black;
border-top: 1px solid black;
}
tr:last-child td.highlight {
border-bottom-color: black;
border-top: 1px solid;
}
th.highlight {
border-top: 10px solid black;
border-bottom: 1px solid;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div>
<table>
<thead>
<tr>
<th>Important</th>
<th>Information</th>
<th>Interchange</th>
</tr>
</thead>
<tbody>
<tr>
<td>Hello world</td>
<td>again</td>
<td>and we're done</td>
</tr>
<tr>
<td>More things to come</td>
<td>over 9000%</td>
<td>Cow level is real!</td>
</tr>
</tbody>
</table>
</div>

Answer 3

Thanks for all the good answers. Being me, I was not satisfied with "it doesn't work" and found a way with only very small adjustments, see below.
$(function() {
var $cols = $("table [data-col]");
$cols.hover(function() {
var colNum = $(this).data("col");
$("[data-col=" + colNum + "]").addClass("highlight");
}, function() {
var colNum = $(this).data("col");
$("[data-col=" + colNum + "]").removeClass("highlight");
});
});
div {
background: #edf0f1;
padding: 20px;
}
table {
table-layout: fixed;
width: 500px;
border-collapse: separate;
border-spacing: 0;
}
td {
vertical-align: top;
padding: 0;
background-color: #fff;
border: 0px solid #edf0f1;
border-right-width: 10px;
border-left-width: 10px;
}
td > div, th > div {
padding: 10px;
border-top: 1px solid #edf0f1;
background: none;
}
td.highlight,
th.highlight {
border-right-color: black;
border-left-color: black;
}
tr:last-child td {
border-bottom-width: 10px;
}
tr:last-child td.highlight {
border-bottom-color: black;
}
th {
border: 0px solid #edf0f1;
border-top-width: 10px;
border-right-width: 10px;
border-left-width: 10px;
}
th.highlight {
border-top: 10px solid black;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div>
<table>
<thead>
<tr>
<th data-col="1"><div>Important</div></th>
<th data-col="2"><div>Information</div></th>
<th data-col="3"><div>Interchange</div></th>
</tr>
</thead>
<tbody>
<tr>
<td data-col="1"><div>Hello world, how are you today</div></td>
<td data-col="2"><div>again</div></td>
<td data-col="3"><div>and we're done</div></td>
</tr>
<tr>
<td data-col="1"><div>More things</div></td>
<td data-col="2"><div>Cow level is real!!1111</div></td>
<td data-col="3"><div>over 9000%</div></td>
</tr>
</tbody>
</table>
</div>
All that was needed is to wrap the contents into a div and tweak the CSS a little.
This way, I keep the properties of the table (including dynamic row height) but can still highlight per column. Hope it helps someone.