- Tags: Layout
- Categories: CSS Properties, CSS Reference, Reference
Quick Reference
The bottom property defines the vertical position of a positioned element, but will have no affect on an item not positioned.
- Position: absolute or fixed – the bottom property sets the bottom edge of an element above/below the bottom edge of its nearest-positioned ancestor
- Position: relative – the bottom property causes the element’s bottom edge to move above/below its normal position
- Position: sticky – the bottom property behaves as if relative when the element is inside the viewport, and as if fixed when it is outside the viewport
- Position: static – the bottom property will have no effect
div {
position: absolute;
bottom: 10px;
}
Values
| Default value | auto |
| Inherited values | no |
| Can it be animated? | yes |
These are the allowed values.
| Value | Description |
|---|---|
| auto | Lets the browser calculate the edge position (default) |
| length | Sets the edge position in px, cm, etc; negative values are allowed |
| % | Sets the edge position in % of containing element; negative values are allowed |
| initial | Sets this property to its default value |
| inherit | Inherits this property from its parent element |
Using JavaScript
The HTML element can also be styled using JavaScript and the element’s id.
document.getElementById('my_div').style.bottom = '10px';
<button onclick='my_function()'>Click Here</button>
<script>
function my_function() {
document.getElementById('my_div').style.bottom = '10px';
}
</script>
We’d like to acknowledge that we learned a great deal of our coding from W3Schools and TutorialsPoint, borrowing heavily from their teaching process and excellent code examples. We highly recommend both sites to deepen your experience, and further your coding journey. We’re just hitting the basics here at 1SMARTchicken.
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CSS NOTES:
- The “inherit”, “initial” and “unset” keywords can be used with any CSS property to set its value
- In CSS there are many ways to express a color value in a property
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