How can get both #row1
and #row2
in the following code to be visible, one after the other vertically, as if there wasn't any absolute/relative
positioning involved?
<body>
<div class="container">
<div id="row1" class="row">
<div class="col1">Hello</div>
<div class="col2">World</div>
</div>
<div id="row2" class="row">
<div class="col1">Salut</div>
<div class="col2">le monde</div>
</div>
</div>
body {position:relative;}
.container {position:absolute;}
.row {position:relative;}
.col1, .col2 {position: absolute;}
Update
I need the elements to have the positioning provided in the CSS rules, for reasons excluded here. So my question is if it's possible to achieve what I'm looking for without removing the above CSS? I.e. having the two .row
div
to appear as "normal" block
elements.
Update 2
If enough height is specified in px
, the result have the expected look. But the content is programmitacally dynamic so I don't know the height on beforehand :(
Well you have some weird wishes here so let me explain you what those positions really mean in CSS and how they work, using position: relative;
is just like using static
position
, the difference is making an element position: relative;
, you will be able to use top
, right
, bottom
and left
properties, though the element will move, but physically it will be in the document flow..
Coming to position: absolute;
, when you make any element position: absolute;
, it gets out of the document flow, hence, it has nothing to do with any other element, so in your example
you have .col1, .col2 {position: absolute;}
which are positioned absolute
and since both are out of the document flow, they will overlap... Because they are already nested under position: absolute;
parent i.e .container
and since no width
is assigned, it will take the minimal width
and hence, your elements overlap, if you cannot change your CSS(which according to me doesn't make any sense why you can't change) still if you want, than you can do is this..
Demo (Without removing any of your position
property) And this is really dirty
For the s
characters, it will be at the top
as your container element is out of the flow, and hence, no height
will be considered in the document flow, unless and until you wrap that s
in some element, and bring it down with, margin
padding
or CSS Positioning.
As I commented, here are few examples of how CSS Positioning actually works, to start with, there are 4 values for position
property i.e static
which is the default one, relative
, absolute
and fixed
, so starting with static
, nothing to learn much here, elements just stackup one below the other unless they are floated or made display: inline-block
. With static
positioning, top
, right
, bottom
and left
won't work.
Coming to position: relative;
I've already explained you in general, it's nothing but same as static
, it stacks up on other element, it is in the document flow, but you can tweak the elements position
using top
, right
, bottom
and left
, physically, the element stays in the flow, only position
of the element is changed.
Now comes absolute
which generally many fails to understand, when making an element absolute
it gets out of the document flow, and hence it stays independent, it has nothing to do with other elements positioning unless it's overlapped by other position: absolute
element which can be fixed using z-index
to change the stack level. The main thing to remember here is to have a position: relative;
container so that your absolute
positioned element is relative to that relative
positioned element, else your element will fly out in the wild.
It's worth noting that position: absolute;
element when positioned absolute;
inside an absolute
positioned parent element, than it is relative to that element and not relative to the grand parent element which may be positioned relative
Demo 3 (Without position: relative;
container)
Demo 4 (With position: relative;
container)
Last is position fixed
, this is same as absolute
but it flows along when you scroll, it's out of the document flow, but it scrolls, also, position: fixed;
element cannot be relative
to any container element having any type of position
, not even relative
, position
fixed
element is always relative
to the viewport, so designers use position: absolute;
when they want to have a fixed
position
behavior but relative
to parent and tweak the top
property onScroll
.