Add border-bottom to table row

Question

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.

Answer 1

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;
}

Answer 2

Use

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

Replace "thin solid" with CSS properties.

Answer 3

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;
}

Answer 4

<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

Answer 5

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;
}

Answer 6

Use

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

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