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How to align content of a div to the bottom


Question

Say I have the following CSS and HTML code:

#header {
  height: 150px;
}
<div id="header">
  <h1>Header title</h1>
  Header content (one or multiple lines)
</div>

The header section is fixed height, but the header content may change.

I would like the content of the header to be vertically aligned to the bottom of the header section, so the last line of text "sticks" to the bottom of the header section.

So if there is only one line of text, it would be like:

-----------------------------
| Header title
|
|
|
| header content (resulting in one line)
-----------------------------

And if there were three lines:

-----------------------------
| Header title
|
| header content (which is so
| much stuff that it perfectly
| spans over three lines)
-----------------------------

How can this be done in CSS?

2020/04/19
1
1195
4/19/2020 10:51:39 AM

Accepted Answer

Relative+absolute positioning is your best bet:

#header {
  position: relative;
  min-height: 150px;
}

#header-content {
  position: absolute;
  bottom: 0;
  left: 0;
}

#header, #header * {
  background: rgba(40, 40, 100, 0.25);
}
<div id="header">
  <h1>Title</h1>
  <div id="header-content">Some content</div>
</div>

But you may run into issues with that. When I tried it I had problems with dropdown menus appearing below the content. It's just not pretty.

Honestly, for vertical centering issues and, well, any vertical alignment issues with the items aren't fixed height, it's easier just to use tables.

Example: Can you do this HTML layout without using tables?

2017/09/20
1342
9/20/2017 11:21:41 AM

Use CSS positioning:

/* Creates a new stacking context on the header */
#header {
  position: relative;
}

/* Positions header-content at the bottom of header's context */
#header-content {
  position: absolute;
  bottom: 0;
}

As cletus noted, you need identify the header-content to make this work.

<span id="header-content">some header content</span>

<div style="height:100%; position:relative;">
    <div style="height:10%; position:absolute; bottom:0px;">bottom</div>
</div>
2019/07/19

If you're not worried about legacy browsers use a flexbox.

The parent element needs its display type set to flex

div.parent {
  display: flex;
  height: 100%;
}

Then you set the child element's align-self to flex-end.

span.child {
  display: inline-block;
  align-self: flex-end;
}

Here's the resource I used to learn: http://css-tricks.com/snippets/css/a-guide-to-flexbox/

2020/04/19

I use these properties and it works!

#header {
  display: table-cell;
  vertical-align: bottom;
}
2020/04/19

After struggling with this same issue for some time, I finally figured out a solution that meets all of my requirements:

  • Does not require that I know the container's height.
  • Unlike relative+absolute solutions, the content doesn't float in its own layer (i.e., it embeds normally in the container div).
  • Works across browsers (IE8+).
  • Simple to implement.

The solution just takes one <div>, which I call the "aligner":

CSS

.bottom_aligner {
    display: inline-block;
    height: 100%;
    vertical-align: bottom;
    width: 0px;
}

html

<div class="bottom_aligner"></div>
... Your content here ...

This trick works by creating a tall, skinny div, which pushes the text baseline to the bottom of the container.

Here is a complete example that achieves what the OP was asking for. I've made the "bottom_aligner" thick and red for demonstration purposes only.

CSS:

.outer-container {
  border: 2px solid black;
  height: 175px;
  width: 300px;
}

.top-section {
  background: lightgreen;
  height: 50%;
}

.bottom-section {
  background: lightblue;
  height: 50%;
  margin: 8px;
}

.bottom-aligner {
  display: inline-block;
  height: 100%;
  vertical-align: bottom;
  width: 3px;
  background: red;
}

.bottom-content {
  display: inline-block;
}

.top-content {
  padding: 8px;
}

HTML:

<body>
  <div class="outer-container">
    <div class="top-section">
      This text
      <br> is on top.
    </div>
    <div class="bottom-section">
      <div class="bottom-aligner"></div>
      <div class="bottom-content">
        I like it here
        <br> at the bottom.
      </div>
    </div>
  </div>
</body>

Align bottom content

2016/05/26

The modern way to do it would be using flexbox. See the example below. You don't even need to wrap Some text... into any HTML tag, since text directly contained in a flex container is wrapped in an anonymous flex item.

header {
  border: 1px solid blue;
  height: 150px;
  display: flex;                   /* defines flexbox */
  flex-direction: column;          /* top to bottom */
  justify-content: space-between;  /* first item at start, last at end */
}
h1 {
  margin: 0;
}
<header>
  <h1>Header title</h1>
  Some text aligns to the bottom
</header>

If there is only some text and you want to align vertically to the bottom of the container.

section {
  border: 1px solid blue;
  height: 150px;
  display: flex;                   /* defines flexbox */
  align-items: flex-end;           /* bottom of the box */
}
<section>Some text aligns to the bottom</section>

2017/01/15

Source: https://stackoverflow.com/questions/585945
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