Bug negative margin with anchor - html

I use a negative margin-bottom to get n DIVs with equal height (I use this method : http://abcoder.com/css/css-equal-height-columns "Three column layout – equal height using pure CSS")
But this is not working with anchor links.
The top part of div just disappear.
Here is my example : http://club-scpi.com/bug.php
This is so strange ! What am I missing ?

this is not a bug and works as html and css intended
#container {
overflow: hidden;
}
is causing the content inside the div ( when told to go to the anchor point ) to scroll UP to
<a name="test">
as the overflow is set to hidden, it appears to - disapear.
It is just "hidden"
change to
#container {
overflow: auto;
}
and you will see what is happening.
As an aside, I am not a fan of the this proposed method for creating equal height divs,
( one of the reasons why is what you have just highlighted ) , all depends on what the particular job is.
Alternatives are; the use of background colours, % heights, px heights, or just fab and up front content design considerations before we set to marking up.
Then there is javascript , it can follow up and tidy up boxes here and there in terms of size ( worth looking into also )
... always keep it as simple as possible.

I had the same situation where I had a negative margin on my footer , and anchored links chopped the top of my page and shifted it to the bottom when clicked on. I had a tag inside the footer with copyright info and moved the negative margin from the to the and worked like a charm. Not sure it applies directly to this situation but might help someone.

Related

Body div element will not extend past certain point on the page

I ran into this issue while implementing a sticky footer solution. I have the footer working well, but my body element which encompasses everything within the tag just will not auto-extend beyond a random point further down that can only be reached by scrolling down (it's a lengthy page). My intention is for the body container (does that sound morbid or what?) to auto extend past all the div elements it contains. Isn't that what it's supposed to be doing? Right now there are still div elements sitting further down from where it ends, and the footer is sitting in the middle of my page right below it. If I can't achieve this behavior, I'll have to set the body to a fixed position in css, which I don't want to do.
Using the following CSS styling doesn't work, probably because my content extends beyond a page.
html, body {min-height: 100%; height: 100%;}
Can someone articulate what the most likely issues could be? Also, feel free to make any constructive comments on my code. This is my first web project.
Here's a link to my HTML code on CodePaste: HTML Code
And here's a link to my CSS code: CSS Code
Lastly, a link to a screenshot of my webpage showing the issue. Screenshot
The green bar is the footer, and the red border is the body element styled in css so it can be viewed. You'll see it ends right after the picture.
I'm pretty sure your main problem is setting the height of the body tag. Try not giving it a height (no max-height or height tags) or giving it height: auto to make it expand as its contents.
It could also be that you are setting child elements to positon: absolute which means that the parent will collapse to the size of whatever non-absolute elements are inside it.
Also, why the <p1> tags? They should be just <p>.
Code criticism:
It was extremely difficult to figure out what the problem was and I'm not sure that I gave the correct solution because of the way you showed your code. In future, try to give your code as a JSFiddle or a Codepen.
Also, consider using a CSS framework which will reduce the amount of CSS code you write a lot. I would suggest Bootstrap or Materialize but Bootstrap is more widely used.
Don't forget to follow CSS guidelines which will make your code more readable.
You could stretch the element to the full height of the window using vh.
.container{
height: 100vh;
}
You could then position your footer to the bottom using absolute position.
footer{
position: absolute;
bottom: 0;
}
I've used this in the past for full page landing pages that aren't meant to scroll.
I don't exactly know what the question is asking, but I experimented a bit and figured that if you remove the 1 from the <p1> so you would have a normal <p> tag, it moves the text up completely. I have a very rough JS Fiddle.
Thanks to all who contributed. Based on suggestions from Sankarsh and Ori, I was able to solve the problem. Once I changed my div to just as they suggested, I noticed it began functioning as I intended and forcing the parent element down beneath it. Unfortunately, that only solved the problem for that element alone. That led to me discovering the element had a default "static" position, while most of my other elements were set to "absolute". After changing the positions of the bulk of my content to "relative" or "static", everything is working as intended!
TLDR: If you want a child element to stay within the boundaries of its parent element, you need to set the child's position to "static" or "relative". You cannot use "absolute". This way, instead of overflowing beyond the border of the parent, the child will automatically extend the parent's border to its intended position.

Wordpress How to make Slider Full-Width (Metaslider)

When I switch off the blog part and sidebars in the terrifico theme in Wordpress I don't seem to be able to place a full width slider anywhere.
The theme looks like this in the form that I'm talking about: http://vpthemes.com/preview/Terrifico/page-full-width/
As you can see all the text is 'bounded' by a box (the black line). Is there any way in which I can make the metaslider go OUTSIDE of this box (i.e. to span the FULL width of the page)? I don't necessarily want to get rid of the box all toghether, the text can stay within it.
I have seen on the Metaslider website that some solutions for certain themes are given (here - but I am not sure how to adapt this to the theme that I'm using.
Thanks in advance!
Disclaimer
Before I suggest a solution, I'd like to point out that what you're asking is to break the Box flow model. I wouldn't recommend that because you're likely to run into inconsistent results across browsers.
That said, what you're trying to accomplish is possible. You could use javascript to do this and it may in fact be easier in some respects but here's a CSS solution.
1. Break out of the box model
float: left;
width: 200%;
margin-left: -50%;
text-align: center;
The float CSS property specifies that an element should be taken from the normal flow and placed along the left or right side of its container, where text and inline elements will wrap around it.
The width of the container is still relative to its parent so if you use % units to scale it up you would need to compensate for the responsiveness of the parent. Here, I'm just overcompensating.
To ensure that our element remains centered, we use a negative margin that is half of the overflow. That is, we want our box to be 100% wide, we have 100% overflow to ensure that so half the overflow is 50% (comment below if that doesn't make sense).
We use text-align to put the element we add in step 3 in the center of the viewport.
2. Allow Overflows
This is where you may well break themes. The parent elements will hide elements that float outside of them if they have the overflow: hidden property (note overflow can also be used to show scrollbars).
You will need to ensure that the parent elements have:
#post-body, .content-posts-wrap {
overflow: visible;
}
As far as I can see that affects #post-body and .content-posts-wrap
3. Add an element that will be the right size
Now we have an oversized container for our slider but we need it to be the width of the page. Inside the div or whatever it is you want to put your slider into you will need to nest another element that will be the correct width. That element will need the following css:
display: inline-block;
width: 100vw;
text-align: left;
You need display because we are back to the box model now and we want our block to obey the width rule we give to it.
We set our width using vw (viewport width) units to make this a bit easier (but they may not be supported on your target browser). There may be some ingenius way to do this without vw units but I would probably just use javascript if it's not an option for you.
Finally, since we set our text-align above, we need to reset it here.
4. Add a Clearing Div
Because you've broken out of the flow, elements aren't too sure what to do. You probably want to add another element after your parent slider that
specifies whether an element can be next to floating elements that precede it or must be moved down (cleared) below them. source
It can be as simple as a <div> element with:
clear: both
write your code something like this...
html like that...
<div id="parent_for_slider">
<div id="slider">
//place your slider code
</div>
</div>
Css for that
#parent_for_slider{
position:relative;
}
#slider{
position:absolute;
width:100% !important;
height:auto;
}
i am recommending to use ResponsiveSlides.js for full width slider with responsiveness

Negative margin limit with images

See My Fiddle:
http://jsfiddle.net/5BEsZ/
I've discovered something very strange that I haven't seen documented anywhere else... Was wondering if you all had a solution.
You'll notice the negative margin hits a limit at around -212% for image elements. Is there a reason for this? Can you think of a work around?
Why I Need This (what I've tried):
I'm making a fluid layout and I want to display a rating system. I have a sprite sheet of stars (similar to the one in the fiddle) that I want to reuse at various sizes.
Because the size changes I can't use a background image. So I decided to use an image inside a container with a variable width and overflow:hidden. The sprite sheet adjusts to the width of the container and the container's viewable content is determined by a padding-top:20%. This is so it can be fluid with its width (since every star is a box, the total height is 20% the width).
Then I try and position the star image inside the container with margin-top. I tried using position:relative and a top:-X%, but because the container technically has no height this was causing issue on mobile phones (-100% of 0 is 0, etc).
So I assumed negative margin would work, but then discovered this strange issue!
NOTE: Because it affects only the last row I can make it work in my situation by using a padding-bottom instead of top (thereby bumping every star row up 1), but this isn't an adequate solution for me because it just ignores the problem. What if I wanted quarter stars?
I've updated your fiddle. img tags are "inline" elements by default, which impacts the way margin is calculated relative to the containing element. By forcing the image element to be rendered like a block (display: block), you're able to achieve the results you were expecting. A div element is a block by default.
As a side note, you'll want to avoid using inline styles (a different sort of "inline"!) wherever possible. Typically your styles would be included in a stylesheet instead of in a style attribute directly on the element. I included the fix (display: block) in the attribute to match the code style of your html.
I don't know why, but if you float the image the problem goes away.
<img src="http://www.whitepages.com/common/images/sprite_stars.gif?1343868502" id="stars" style="width:100%; float: left;" />
So, the answer to fix your problem: http://jsfiddle.net/5BEsZ/2/
If anyone could explain why this happens?

CSS give different look in mozila and chrome

CSs for rate box:
.rating-input {
font-size: 25px;
position:relative;
left:101%;
}
Button:
.custom-input-button {
text-align: center;
position:absolute;
left:64.4%;
top:12.1%;
}
image :
<img src="https://graph.facebook.com/<?php echo $user_id; ?>/picture?type=large"
style ="position:relative; top:-46px; left:0px;"/>
It gives different look in chrome and firefox:
Firefox:
In chrome bookmark menu is not open. The change in spacing is due to that?
I am frustrated changing the positions, but problem does not solved.
I agree that your not giving us enough code to really give you a good response to.
If this helps at all, when I do custom form boxes as such, I wrap them in a div to start off with. Then define my widths/heights, and do a left float. This might be a deprecated method, and there may be a better way to do it, but this has always worked for me so I still tend to do it.
That should keep your elements all at the top, then you could do a clear:both, and float your rating system to the right? Just an idea.
Just to sum up conversation in comments.
You could make resizable containers with width in %. That will make your site adjustable to screen resolutions. Make it for minimum resolution of 15" display (1024px in width). Then position elements inside those containers. You can wrap them in another node of wrappers. More wrapper divs - the less can go wrong. But you don't want them too many, ofcourse. It depends on structure of your site. Then you can set margins and size of elements in px inside those containers.
Quick example of what babbling about in upper paragraph
jsfiddle.net/Driveash/qgbLB
You can also make extra css for specific browser.
Are left and margin-left the same?
Left and margin-left could do the same thing but they are not the same. Left is for positioned element (as absolute, relative, fixed). If you don't have positioned element then you want to use margin-left.
add z-index:-999; to the image so it doesn't sit in front of the green banner

Footer Issues : Can't Keep it Down

I have been trying for 2 hours to get my footer to stay at the bottom.
I have been trying "Matthew James Taylors" technique, but no luck.
Anyone see what I am missing or doing wrong?
Here is a Live Example : http://glustik.com/essex/index.html
Any help would be GREAT!
I would attached the CSS Code with the { } but it always breaks for me.
I feel like the CSS to fix this will still be problematic, I would be tempted to rewrite the whole thing: HTML markup and CSS, otherwise I suspect there will be more trouble down the road.
Here are some things that are most likely giving you trouble:
Duplicate id values (as mentioned)
Unnecessary absolute positioning
Hard-coded height values on several divs
Unnecessary use of "clearfix" divs
Overuse of negative margins to compensate for padding on other elements (always problematic)
Minor but relevant: use of classes like floatRight, just as bad as using inline styles.
I think in general, instead of trying to control the positioning and height of everything - just let the normal content flow dictate it. Naturally, the last element in your markup (footer) should be on the bottom without all these over-thought restrictions.
Best of luck!
EDIT: Apparently I've come off as unhelpful, so I felt I should add a direct response: For a quick fix, to simply get the footer on the bottom:
Remove the height and bottom padding from #mainBody
(tested in FF4 and IE8). There will still be some padding issues within the footer, but that can be resolved in a number of ways depending on how you'd like to approach it. Once again, good luck with your project.
You have the footer positioned absolutely in #container, which is positioned relatively. therefore, its being positioned at the bottom of #container.
try moving it out of #container, or remove the relative positioning from #container
Because all of the content inside your main container (#mainBody) is floated, the container's only way to determine it's height is via the "height" property, which is set to 100px;. The footer is correctly rendering right below the 100 pixel height of the main container.
You have three options:
you can either properly clear your main container so that its height is dynamic based on its content using a clearfix like this
or you can set the height of the main container to something larger. I changed it to 700px and the footer rendered well below the main body.
or you can remove the height altogether, which will probably be the best solution in the long-run. Thanks to #Gaby aka G. Petrioli for pointing this out.
I've been doing this a long time and have never heard of this method. That doesn't make it bad, but the currently accepted version in my circles comes from Ryan Fait (http://ryanfait.com/resources/footer-stick-to-bottom-of-page/)
If you load this up in Chrome and disable the position:relative from the container it does properly glue the footer to the bottom of the page. That signals a problem to me, because it's contrary to what the tutorial says. Regardless, it accomplishes your goal.
You should take at least a look at Compass. It makes CSS so much easier. For your particular question, take a look at:
http://compass-style.org/reference/compass/layout/sticky_footer/
Make the following changes and it rendered fine in Chrome for me:
remove bottom:0; from #footer
change padding-bottom:167px; in #mainBody to the desired location (I used 455px and it looked pretty good)