What does the css style POSITION do for the HTML element?

css position: relative to parent
css position center
position css
css position: sticky
position: fixed
css-position: absolute center
css position mdn
image position html

I was trying to position a footer at bottom of page or bottom of screen, whichever is lower. I thought the following would work:

body { margin-bottom: 4em; }
.footer { position:absolute; bottom: 0 }

But the above always put .footer at bottom of screen, even if the page was longer than the screen. I struggled for hours until I found that the following was needed:

html { position: relative }

I can't find documentation for the position style when applied to the html element. What does this style do the html element? Html is the father of all elements, so what does position mean? What is the default value for position for element html?

<html> does have some special properties, but in term of styling, you can think of it as any other block element (such as a <div>).

I assume you already understand what each of the position value do to an element. For absolute, the element is positioned relative to its closest positioned ancestor. If there is none, it is placed relative to the initial containing block, which is:

The containing block in which the root element (<html>) resides is a rectangle called the initial containing block. It has the dimensions of the viewport (for continuous media) or the page area (for paged media).

So, if an element is absolutely positioned and does not have a relatively positioned parent, it will be positioned as if it is relative to the viewport. Hence your original observation.

Adding position: relative to the <html> element works for the same reason that it will work on any other elements.

Note that adding position: relative to the <html> element might result in your footer to rise up to the middle of the viewport if you have a short page, since the height of the <html> is determined by the height of the content. This can be easily remedied by setting the min-height of the html to 100%.

CSS Layout - The position Property, Positioning elements with CSS in web development isn't as easy as it seems. without having a good understanding of how CSS deals with aligning HTML elements, If you prefer, you can watch the video version of CSS Positioning Tutorial: Completing the Square Error 403 Forbidden CSS Inline Style. The element is positioned relative to its normal position, so "left:20px" adds 20 pixels to the element's LEFT position. Play it ». sticky. The element is positioned based on the user's scroll position. A sticky element toggles between relative and fixed, depending on the scroll position.

The CSS position is used for giving custom position to your any HTML element. The position style has 4 different type of value and they are static|relative|absolute|fixed. Lets take a look at each value, so lets start with static position value, every element has a default position in a web page, so giving an element a static position means it will keep the element at its default position, and it is of no use to specify an element's position as static. Next is relative if you set an element's position as relative then there'd no effect of this value on its position but you can use top,bottom,left,right property to move an element from its normal position without giving or showing any effect to other elements position in a web page. Now let see absolute position value, so when you give an absolute postion to an element then that element break its normal flow from its normal position and takes a position according to a parent element or by a browser window. It will take position from that parent element whose position value is already given as relative|absolute|fixed except static. And now the last position type is fixed so if you give an element's position as fixed then you can move that element to any x and y position, and that element will get fixed to that given x and y position and won't even move from that fixed position while scrolling up or down in that web page.

CSS position property, <html> does have some special properties, but in term of styling, you can think of it as any other block element (such as a <div> ). I assume you  The CSS used for setting the position to absolute is: position: absolute; An element with position: absolute; is positioned relative to the closest positioned ancestor. If an absolute positioned element has no positioned ancestors, it uses the document body, and moves together with page scrolling.

Default position of element is static so we adjust that static position as per our need by giving different position. Here are different link:

https://css-tricks.com/absolute-relative-fixed-positioining-how-do-they-differ/

Link for footer always bottom: For this you have give height:100% to html and body and then you have to give min-height:100% to body

https://matthewjamestaylor.com/blog/keeping-footers-at-the-bottom-of-the-page

CSS top property, Relative to its original position the element above will now be nudged down from the top by 20px. If we were to animate these properties we can  CSS Position & Helper Properties. So there are 5 main values of the Position Property: position: static | relative | absolute | fixed | sticky. and additional properties for setting the coordinates of an element (I call them “helper properties”): top | right | bottom | left AND the z-index

position: relative, without an accompanying offset, is used almost exclusively to create a reference for position: absolute (which traces back to the first non-static element it finds).

The default is static (per MDN), though adding relative doesn't change anything visually unless you add an offset.

How to use the position property in CSS to align elements, When it comes to positioning content on a page there is a handful properties to use that can help you manipulate the location of an element. static, element will be positioned based on the normal flow of the document. usually, u will use position static to remove other position might be applied to an element. ref: css positioning in ten steps , css position , MDN: position

What does the css style POSITION do for the HTML element?, You can put any HTML element at whatever location you like. You can specify whether you want the element positioned relative to its natural position in the page  The position Property. The position property specifies the type of positioning method used for an element. There are five different position values: static; relative; fixed; absolute; sticky; Elements are then positioned using the top, bottom, left, and right properties. However, these properties will not work unless the position property is set first. They also work differently depending on the position value.

position, CSS (Cascading Style Sheets) is a style sheets language that can be applied to HTML to control the style of a document: which fonts and colors  Definition and Usage. The top property affects the vertical position of a positioned element. This property has no effect on non-positioned elements. If position: absolute; or position: fixed; - the top property sets the top edge of an element to a unit above/below the top edge of its nearest positioned ancestor.

Positioning HTML Elements Using CSS, The <style> element is used to add CSS style rules to an HTML document. The element is expected to appear in the document <head>, but will also render acceptably when used in the <body> of the document.

Comments
  • This question was already asked many times, like position: absolute; bottom: 0; go to bottom of page, Position Absolute and Bottom 0, so you should include a refernce to those questions, and explain why their answers to answer your question.
  • Please Check position properties at: w3schools.com/cssref/pr_class_position.asp . It sets positioning style of an element and also has effect on some other areas. For example position of an element need to be defined if you want to set z-index of an it.
  • basically, it does what it says - position:absolute; positions it top left in the first element that has a position: relative; up the tree. position relative positions itself relative to the other relative element. - putting relative on the html tag makes sure that any absolute elements at least has something to position themselves to.
  • "I can't find documentation for the position style when applied to the html element". That's because there's nothing special about the html element. It does the same thing as it does on any other element that's not display:none. To understand what is happening, read up on containing blocks
  • Thanks, but it does not answer the question. The top, bottom, left and right properties of my html were not set, and as it is the topmost element containing everything else, relative placement wrt other elements is not applicable or very meaningful.
  • Okay, BTW I thought you were asking the working knowledge of a css style position inside of a web page. :D
  • Your first paragraph is interesting. I wasn't aware that this setting affects child elements. Do you know of any references that can explain more?
  • @OldGeezer It's more that position: absolute requires an ancestor that has a position other than static. I don't know why that particular design decision was made, but you can certainly try it without an ancestor to see what happens!