Add border-bottom to table row <tr>

I have a table of 3 by 3. I need a way to add a border for the bottom of every row tr and give it a specific color.

First I tried the direct way, i.e.:

<tr style="border-bottom:1pt solid black;">

But that didn't work. So I added CSS like this:

tr {
border-bottom: 1pt solid black;
}

That still didn't work.

I would prefer to use CSS because then I don't need to add a style attribute to every row. I haven't added a border attribute to the <table>. I hope that that is not affecting my CSS.

Add border-collapse:collapse to your table rule:

table { 
    border-collapse: collapse; 
}

Example

table {
  border-collapse: collapse;
}

tr {
  border-bottom: 1pt solid black;
}

<table>
  <tr><td>A1</td><td>B1</td><td>C1</td></tr>
  <tr><td>A2</td><td>B2</td><td>C2</td></tr>
  <tr><td>A2</td><td>B2</td><td>C2</td></tr>
</table>

Link

I had a problem like this before. I don't think tr can take a border styling directly. My workaround was to style the tds in the row:

<tr class="border_bottom">

CSS:

tr.border_bottom td {
  border-bottom: 1px solid black;
}

Use border-collapse:collapse on table and border-bottom: 1pt solid black; on the tr

Use

border-collapse:collapse as Nathan wrote and you need to set

td { border-bottom: 1px solid #000; }

There are lot of incomplete answers here. Since you cannot apply a border to tr tag, you need to apply it to the td or th tags like so:

td {
  border-bottom: 1pt solid black;
}

Doing this will leave a small space between each td, which is likely not desirable if you want the border to appear as though it is the tr tag. In order to "fill in the gaps" so to speak, you need to utilize the border-collapse property on the table element and set its value to collapse, like so:

table {
  border-collapse: collapse;
}

You can use the box-shadow property to fake a border of a tr element. Adjust Y position of box-shadow (below represented as 2px) to adjust thickness.

tr {
  -webkit-box-shadow: 0px 2px 0px 0px rgba(0,0,0,0.99);
  -moz-box-shadow: 0px 2px 0px 0px rgba(0,0,0,0.99);
  box-shadow: 0px 2px 0px 0px rgba(0,0,0,0.99);
}

I tried adding

    table {
      border-collapse: collapse;
    }   

alongside the

    tr {
      bottom-border: 2pt solid #color;
    }

and then commented out border-collapse to see what worked. Just having the tr selector with bottom-border property worked for me!

No Border CSS ex.

No Border Photo live

CSS Border ex.

Table with Border photo live

Use

table{border-collapse:collapse}
tr{border-top:thin solid}

Replace "thin solid" with CSS properties.

Display the row as a block.

tr {
    display: block;
    border-bottom: 1px solid #000;
}

and to display alternate colors simply:

tr.oddrow {
    display: block;
    border-bottom: 1px solid #F00;
}

Another solution to this is border-spacing property:

table td {
  border-bottom: 2px solid black;
}

table {
  border-spacing: 0px;
}

<table>
 <tr>
   <td>ABC</td>
   <td>XYZ</td>
</table>

I found when using this method that the space between the td elements caused a gap to form in the border, but have no fear...

One way around this:

<tr>
	<td>
		Example of normal table data
	</td>
	
	<td class="end" colspan="/* total number of columns in entire table*/">
		/* insert nothing in here */ 
	</td>
</tr>

With the CSS:

td.end{
	border:2px solid black;
}

<td style="border-bottom-style: solid; border-bottom: thick dotted #ff0000; ">

You can do the same to the whole row as well.

There is border-bottom-style, border-top-style,border-left-style,border-right-style. Or simply border-style that apply to all four borders at once.

You can see (and TRY YOURSELF online) more details here

Several interesting answers. Since you just want a border bottom (or top) here are two more. Assuming you want a blue border 3px thick. In the style section you could add

.blueB {background-color:blue; height:3px} or
hr {background-color:blue; color:blue height:3px}

In the table code either

<tr><td colspan='3' class='blueB></td></tr> or
<tr><td colspan='3'><hr></td></tr>

No CSS border bottom:

<table>
    <thead>
        <tr>
            <th>Title</th>
        </tr>
        <tr>
            <th>
                <hr>
            </th>
        </tr>
    </thead>
</table>

You can't put a border on a tr element. This worked for me in firefox and IE 11:

<td style='border-bottom:1pt solid black'>

If you don't want to

• enforce border collapse on the table
• use the TD elements styling

You can use the ::after selector to add borders to TR :

table tbody tr {
    position : relative; # to contain the ::after element within the table-row
}

table tbody tr td {
    position : relative; # needed to apply a z-index
    z-index : 2; # needs to be higher than the z-index on the tr::after element
}

table tbody tr::after {
    content : '';
    position : absolute;
    z-index : 1; # Add a z-index below z-index on TD so you can still select data from your table rows :)
    top : 0px;
    left : 0px;
    width : 100%;
    height : 100%;
    border : 1px solid green; # Style your border here, choose if you want a border bottom, top, left, etc ...
}

It is a simple trick that I used in a scenario where I had to put spaces between table-rows so I wasn't able to add a border collapse on the table, the end result :

Hope it helps :)

HTML

<tr class="bottom-border">
</tr>

CSS

tr.bottom-border {
  border-bottom: 1px solid #222;
}