Make a Div Fill an Entire Table Cell

Make a DIV fill an entire table cell

The following code works on IE 8, IE 8's IE 7 compatibility mode, and Chrome (not tested elsewhere):

<table style="width:100px"> <!-- Not actually necessary; just makes the example text shorter -->
   <tr><td>test</td><td>test</td></tr>
   <tr>
      <td style="padding:0;">
         <div style="height:100%; width:100%; background-color:#abc; position:relative;">
            <img style="left:90px; position:absolute;" src="../Content/Images/attachment.png"/>
            test of really long content that causes the height of the cell to increase dynamically
         </div>
      </td>
      <td>test</td>
   </tr>
</table>

You said in your original question that setting width and height to 100% didn't work, though, which makes me suspect that there is some other rule overriding it. Did you check the computed style in Chrome or Firebug to see if the width/height rules were really being applied?

Edit

How foolish I am! The div was sizing to the text, not to the td. You can fix this on Chrome by making the div display:inline-block, but it doesn't work on IE. That's proving trickier...

How do I make a div fill an entire table cell?

have you tried changing css to:

#centerCell{
    border: 1px solid black;
    height:100%;
}

seems to work for me on edge, firefox and chrome

Make div height 100% in a table cell

If you only need the background color to cover the entire cell, you can just set it on the td rather than div.

td:last-child {
  background-color: green;
}

If you really need to make the div to cover the cell, you can try using the position tricks. Note, this approach only works when there is less data in the second cell.

td {
  position: relative;
}
td:last-child div {
  background-color: green;
  width:100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
}

jsFiddle

Make a div fill up the entire width and height of a table cell with unspecified dimensions

After trying many things it seems that as of 2020 stretching a div to fill all the available space of a table cell without JavaScript is not possible unless you use absolute/relative positioning.

The downside with absolute positioning is that the cell does not expand with the content inside it and even not expanded the table cell seems to break on mobile ( tested with an iphoneXS on IOS14 )

dev-sbx.github.io/x

The only real solution here seems to be using a CSS Grid layout opposed to an HTML table.

How to set 100% height of div inside table cell

Demo - codepen

Here's another relevant SO answer

It appears you need to add a height to the <table> tag.

<table style="border-collapse: collapse; height:100%">

height: 100% for div inside div with display: table-cell

When you use % for setting heights or widths, always set the widths/heights of parent elements as well:

.table {    display: table;    height: 100%;}
.cell {    border: 2px solid black;    vertical-align: top;    display: table-cell;    height: 100%;}
.container {    height: 100%;    border: 2px solid green;    -moz-box-sizing: border-box;}

<div class="table">    <div class="cell">        <p>Text        <p>Text        <p>Text        <p>Text        <p>Text        <p>Text        <p>Text        <p>Text    </div>    <div class="cell">        <div class="container">Text</div>    </div></div>

body {
    display: table;
    width: calc(100% - 16px); /* 8px margin either side */
}

body {
    display: table;
    width: 100%;
    margin: 0;
}