I was trying for display:inline property and I found same question for which I was looking....and here I got this answer, it makes me very clear ....but I am not clear about these lines ...
Basically margin, padding and border
can be set on inline-level elements,
but they may not behave as you expect.
The behavior will probably be OK if
there's only one line, but other lines
in the same flow will likely exhibit
behavior different from your
expectations (i.e. padding will not be
respected).
so please anybody can make me clear about these lines...I have also tried for display :inline here
You cannot set height, margin-top, margin-bottom, padding-top and padding-bottom on an inline element. You can set margin left and right an padding left an right.
You can set with on an inline element but then it will behave like a block element: See here
Inline Elements will always be displayed next to each other as long a they fit next to each other.
yes inline element behave differently other then block element. the main point of inline element is that is doesn't take vertical margin & padding.
inline elements like a, span
you can give inline-block instead of inline
this is a best example related to your question
http://www.maxdesign.com.au/articles/inline/
EDIT
yes, padding-bottom pushing the inline element down but it's not add any width to your inline element means when the content move to new line it's going to overlap each other & in block element margin, padding & border are adding width,height & space the block element
check these link for more
http://reference.sitepoint.com/css/inlineformatting
with this property set (display:inline) you can't set width and height of your element. Margin, padding & border is ok. I'd use floating instead, but that's because it gives me more flexibility sometimes. =]
It is saying that if you have an inline element that goes all the way to the right of the page and then wraps around to the left (for example, a single line of text that takes up two lines of space) then you may have unexpected consequences. In particular the padding may not display as desired.
An inline element, when it doesn't break on to multiple lines, respects left/right padding - so you see the padding-left and padding-right inside the left and right edges of the element respectively.
When the inline element does break on to multiple lines, the padding is somewhat respected, in that again both left and right inside edges of the element have padding. The part where it isn't respected is exactly the part where the element breaks, the break-point doesn't have any padding because it simply spreads itself onto the next line.
A block element on the other hand, does respect padding properly because it adds the padding and the contents of the element break inside that padding.
Here's a quick image to help explain what I've explained:
Related
Here is my case code.
I create a div which contain element i. The i has width and height attribute and I achieve it with different way. So ,I encounter the line-height issue. I know a little about float vs inline-block. But, What cause out the line-height in my case?
inline-block is treated as an inline element (like text). If it is taller than other inline elements in the same line, it forces the line-height to be taller. You can use vertical-align:top|middle|bottom; to change the alignment of the inline-block element (more options for vertical-align here: https://developer.mozilla.org/en/docs/Web/CSS/vertical-align).
A floated element is just pushed to one side or the other, and the text flows around it.
MDN says:
If there is no border, padding, inline content, or clearance to separate the margin-top of a block with the margin-top of its first child block, or no border, padding, inline content, height, min-height, or max-height to separate the margin-bottom of a block with the margin-bottom of its last child, then those margins collapse. The collapsed margin ends up outside the parent.
I don't understand the last sentence. Why does the collapsed margin end up outside the parent? If it ends up outside the parent, where will it go? I have searched the web and read several tutorials about margin collapsing, but I didn't find anything about this.
I threw together this little demo to help demonstrate the way this works:
http://jsfiddle.net/9pq8bm0o/
As you can see, I've made three elements, all nested within each other. The 2 inner containers both have a top margin value of 20px, and the outermost container has a top border (one of the things that is considered a margin separator).
So what does this mean?
Because there is no separation at the top of the two child elements, there is only 20px of space in between the outermost container and BOTH of the two child elements... the inner-most child has had it's margin collapse. Conversely, that margin that is there exists within the outermost container simply because of that border.. if you remove the border, all three elements will share the same 20px of margin which will be outside of all three containers.
So why is it like this?
The best way to think about margin collapsing is like this:
Asking for a margin on an element will ensure that it has that much margin at it's top, and nothing more (unless it's forced to have more).. So looking at my example, Does the middle .parent element have 20px of space above it? Yes, it does. Does the innermost child .child have 20px of space above it? Yes, it also does... so the margin rule is being applied correctly. It doesn't matter where that space lives, as long as it is there.
Imagine that there was a border around the .parent element, but the margin was still displayed the way it is without, and then ask those same questions.. Does the .parent element have the space? Yes, but does the .child element? No, it no longer would, because there would not be 20px of space in between it and the border that is now sitting above it... So, in reality, the space does not collapse, so that both of those questions can be answered as a "yes".
I hope that helps.. it's a little less of a direct answer to your question, and more of the theory behind how it works, so to put things a bit more plainly:
tl;dr
Margin, unlike padding, is meant to add space outside of elements. Because of this, margin will always collapse to the highest parent element whenever possible, to ensure that space is always "outside". Because it is outside of the element, it can count towards multiple different elements, as they all share that "outside" space.
According to http://www.maxdesign.com.au/articles/inline/, the section called "Inline elements and padding" says
While padding can be applied to all sides of an inline element, only left and right padding will have an effect on surrounding content.
So in accordance with that, it seems that it is never ever any point to use padding vertical(top,bottom) for inline elements.
Is that correct?
Well, the padding box is the area covered with the background colour, and the border is painted around that, so changing the padding top and bottom can change what the inline element looks like even if it has no effect on the surrounding content.
What is the default behaviour of a div?
I noticed that even if a put a width for a div let's say 100px,
if i put a 2nd div with the same width will put it on the second line.so by default doesn't matter the width. it puts it on different lines?
in this case i understand the need of float.
I thought that any element i put in a html page,they will be side by side unless i add a break element or paragraph or something with that role.
Or maybe i do not use it correctly the div for this kind of alignment,but i really want to
clarify this for good.
A div element is, by default, display: block.
This value causes an element to generate a block box.
The rendering of them is described here
Block-level elements are those elements of the source document that are formatted visually as blocks (e.g., paragraphs). The following values of the 'display' property make an element block-level: 'block', 'list-item', and 'table'.
Block-level boxes are boxes that participate in a block formatting context.
and then here
In a block formatting context, boxes are laid out one after the other, vertically, beginning at the top of a containing block.
To stop this kind of rendering, you can use float to cause block level elements to bubble up beside each other. You can also modify the display property of the div.
Divs are block-level elements which mean they stack...like blocks. Although it sounds reasonable that since the width would allow them to fit side-by-side without a float, this is not how they are designed to behave.
If an element is an inline element as opposed to a block, its behavior is to fit side-by-side. You can force this behavior on a div if you would like by tying the two ideas together. You can do something like:
<div style="display:inline-block"></div>
This will allow the div to maintain its other block properties but allow it to fit inline as text and images would and, if this the your desired goal, avoid the use of float.
The DIV by default takes 100% of the screen, even if you set it width the space on the right cannot be occupied by anything.
Try this:
The way to have two div on the same line would be to make them float:
<div style = 'float:left;width:500px;background-color:red;color:white;'>Hey</div>
<div style = 'float:left;width:100px;'> There</div>
Here is a very simply jsFiddle to demonstrate my problem: http://jsfiddle.net/ryandlf/mSmUv/4/
When an element has a top padding or margin and it sits on the first line within a div, the div does not respect that padding or margin and push the element down. In most cases this isn't an issue, but for example, if I have a button that has a top border and padding the top of the border will be cut off because the div is not taking into consideration the padding value.
Is there a workaround for this other than just blindly setting margins or padding on every container div element and hoping I have added enough to account for any internal element that might be affected?
your link with class button is not a block element, it is inline element. Change this default behaviour by adding dispaly: block to it and it will work as expected. Proof available on jsfiddle.
So to sum up, the problem is not with the div - it is the problem with css - inline elements ignore margin and padding because they cannot 'reserve space'.
UPDATE: To answer your comment, here is the solution you might be looking for
The button element is inline. To get the desired behavior you can set display:inline-block.
Check here
Try to add following to the parent div:
overflow: hidden
I hope it helps!