How to remove TD borders in only first TR in TABLE - css

Question

I am styling table for my website. I want to have a table where first TR doesn't have border while others TR and their TD's have a border.
Code: http://jsfiddle.net/azq6xfnr/ or here:
.table2 {
border: 1px solid black;
border-collapse: collapse;
text-align: center;
}
.table2 .header {
background-color: #d8ff93;
color: #126f06;
border: 0;
}
.table2 td {
border: 1px solid #53f673;
padding: 10px;
}
.table2 tr:not(.header):nth-child(odd) {
background-color: #3cde53;
}
<table class="table2">
<tr class="header">
<td>Lp.</td>
<td>Column 1</td>
<td>Column 2</td>
</tr>
<tr>
<td>1</td>
<td>Row 1</td>
<td>Row 1</td>
</tr>
<tr>
<td>2</td>
<td>Row 2</td>
<td>Row 2</td>
</tr>
<tr>
<td>3</td>
<td>Row 3</td>
<td>Row 3</td>
</tr>
<tr>
<td>4</td>
<td>Row 4</td>
<td>Row 4</td>
</tr>
<tr>
<td>5</td>
<td>Row 5</td>
<td>Row 5</td>
</tr>
</table>

Answer 1

Use the CSS first-child selector. Here is a fiddle http://jsfiddle.net/r8p061hs/ or http://jsfiddle.net/r8p061hs/1/
.table2 {
border: 1px solid black;
border-collapse: collapse;
text-align: center;
}
.table2 .header {
background-color: #d8ff93;
color: #126f06;
border: 0;
}
.table2 td {
border: 1px solid #53f673;
padding: 10px;
}
.table2 tr:not(.header):nth-child(odd) {
background-color: #3cde53;
}
.table2 tr:first-child {
border: 1px solid #53f673;
}
.table2 tr:first-child td {
border: none;
}
<table class="table2">
<tr class="header">
<td>Lp.</td>
<td>Column 1</td>
<td>Column 2</td>
</tr>
<tr>
<td>1</td>
<td>Row 1</td>
<td>Row 1</td>
</tr>
<tr>
<td>2</td>
<td>Row 2</td>
<td>Row 2</td>
</tr>
<tr>
<td>3</td>
<td>Row 3</td>
<td>Row 3</td>
</tr>
<tr>
<td>4</td>
<td>Row 4</td>
<td>Row 4</td>
</tr>
<tr>
<td>5</td>
<td>Row 5</td>
<td>Row 5</td>
</tr>
</table>

Answer 2

I think css pseudo class :first-child could help you: http://www.w3schools.com/cssref/sel_firstchild.asp

Answer 3

You need to remove the border from both your table, and the cells in the .header row, no need to use :first-child or :first-of-type as you've given the row the class header
Demo Fiddle
.table2 {
border-collapse: collapse;
border-spacing:0;
text-align: center;
/* remove the border from here */
}
.table2 .header td{
border:none; /* and from here */
}

Answer 4

As an alternative to the other answers, if your intention is that the first row be styled this way to be a header row, you could also consider using the more semantic <thead> grouping with <th> elements, if that's practical. You could then class them (advisable) or just rely on the tag names (less advisable due to selector performance, but still possible).
By then grouping subsequent rows within a <tbody>, you could also simplify your alternate row colouring selector, as you would be able to avoid the :not pseudo-selector.
Example of adjusted code:
<table class="table2">
<thead class="header">
<tr><th>Lp.</th><th>Column 1</th><th>Column 2</th></tr>
</thead>
<tbody>
<tr><td>1</td><td>Row 1</td><td>Row 1</td></tr>
<tr><td>2</td><td>Row 2</td><td>Row 2</td></tr>
<tr><td>3</td><td>Row 3</td><td>Row 3</td></tr>
<tr><td>4</td><td>Row 4</td><td>Row 4</td></tr>
<tr><td>5</td><td>Row 5</td><td>Row 5</td></tr>
</tbody>
</table>