Pushing down the body and background universally - html

So, there have been some questions about this already, but mine is a bit more specific.
I want to add a 40px high admin bar to the top of all pages of my CMS when the user is logged in as an admin.
But I don't want to obscure the content on the page, so I want to push it down. Remember, this is a CMS so there is a lot of different CSS/designs on all the pages that use it. The system do have control of all the CSS though, so I can change it on the fly.
I started out by adding a "margin-top: 40px" to the body element before realizing that the background-image of BODY isn't actually attached to the body, but rather the otherwise unstylable root element.
So, I used "background-position: 0 40px" to move down the background image. Score! Only, some sites already used background-position to position their background in relation to the content and me overriding that severely messed up the design of those pages.
So - is there a better way to handle this? Or am I going to have to parse and alter every sites possible background-position on the fly - which I can do, but rather not :)
Thanks for your help!

To avoid the problem, you could change the way your CMS functions. Add a full page wrapper div that acts as a body for the user's content. Then, inserting a 40px high element above the wrapper will universally push it down.

You can try the following, you might need to position your cms toolbar negatively though.
html { margin-top: 40px; }
#yourCmsBar { position: absolute; top: -40px; height: 40px; }

You can push down the html element if the background is applied to the html element, and then use position:absolute to positioning your header. Example: http://jsfiddle.net/u22zE/2/

Related

How to set how far down a page a HTML fragment links to?

HTML fragments using links to pages using /#page-section to link to a specific section of a page is loading too low down the element for me.
For example I set up a <div id="engagment"> and then link to site.com/#engagement but instead of it linking to the top of the section like this:
what I want to happen
I get this: What actually happens
Is there anything I can do to fix this?
Thanks in advance. I'm new to html/web development.
That's because you have a fixed header which overlaps that section (which is actually positioned at the top of the window). So you need to create an offset.
A common way is to add an invisible pseudo element to the original target element of the link via CSS, like this:
#page-section::before {
display: block;
content: " ";
margin-top: -150px;
height: 150px;
visibility: hidden;
}
This will "extend" the element with that ID in a way that causes the anchor to be 150px above the main element, without any other visible changes. Adjust that value as you need it (i.e. to the height of your fixed header)
(A padding-top or margin-top would do something similar, but it would create an empty space in there, which you might not necessarily want)

How to get a single image to hide website pages during maintenance period

I'm currently trying to get a single image (website under construction) to cover the entire Tumblr website I'm working on, temporarily, without losing any of the underlying HTML and CSS code. Additionally, I'm not sure where to put the image itself (head, body, etc) to get it to cover up the menus and other links that are above the content without changing the structure.
There are many ways to do this.
Option 1
The most efficient way would be to have a new page with just the image and put a temporary redirect on your DNS entry if that is accessible to you. If you do not have access you can add a redirect into the head tag. (If you are looking to eventually have good SEO(Search Engine Optimization) you should be wary how you perform this redirect. Hosting the site before its ready may negatively impact rankings.
Option 2
Add the image to a div or the body tag as the background with 100% height and give it a large z-score to raise it above the rest of the content.
I suggest you put a div in the body, then style it with the following rules:
.mask {
position: fixed;
top: 0;
bottom: 0;
left: 0;
right: 0;
background-color: lightgrey;
z-index: 100;
}
Then put the image in this mask div. The mask element will fill the page.

Offset page to prevent sticky header from covering auto-generated anchors

I'm using jekyll to generate my pages and as anyone knows that uses jekyll, the anchor tags on h-tags are automatically generated.
Solutions I am not looking for:
Add padding — my h-tags are using margins because I'm a normal person. Also, my sticky header is 50px tall which means that all my h-tags would need a miniumum of 55(ish)px padding. This causes there to be too much spacing.
Create your own anchor in a span tag — this defeats the point of the autogenerated tags and I'm trying to live a D.R.Y. lifestyle.
Summary: I need to offset the anchor's position without changing the location of the h-tag.
If this has already been answered, I apologize for creating a duplicate question. I could not find the answer to this that was not 'solved' with the previous mentioned 'solutions'.
You may want to use the :target pseudo selector, which matches when the hash in the URL and the id of an element are the same. Therefore, the style will only apply to the h-tag which has been navigated to rather than all of them.
For example, you can use :target::before to add a margin to the top of the selected tag:
:target::before {
content: "";
display: block;
margin-top: -75px;
height: 75px;
}
Here, this technique was used along with an animation which removes the margin after one second so that the margin no longer exists if/when the user scrolls up the page.
Adding this solved my problem.
html {
scroll-padding-top: 70px; /* height of sticky header */
}

CSS for top navigation bar with no margin and browser default margin in area below it

The fundamental ideas for this idea for a simple web page format are
a) let the user decide what he wants text to look like
b) make the code as short and simple as possible
In his browser settings (if the application allows it), the reader chooses the typeface, size of text, size of headings (H1, H2, etc.), background color and other defaults. So far, the sole line in the external CSS file: body { max-width: 30em; font-family: Sans-Serif }.
But, a very familiar (and practical) convention is a top bar (title/masthead and/or navigation) with no margin-- it bleeds to the edges of the browser/device, filling the space entirely. The problem is that all browsers have a margin by default.
So, how is the no-margin bar achieved-- while letting the browser default margin work for the rest of the HTML page?
The inherit, reset and unset css keywords seem to get close. And, obviously, one thing that repeatedly appears when researching this notion is { margin: 0; padding: 0; }.
What is the solution for a top navigation bar with no margin and a margin in the main content area below it controlled by the browser default?
Is it even possible?
read the body margin and assign negative margin to header:
<div id="header">Some text to test</div>
<script>
var defaultmargin=$("body").css("margin").replace("px","");
$("#header").css("margin",-defaultmargin+"px");
</script>
You can make whatever changes you want with JavaScript (JQuery is my prefered framework).
For web design, man, you really need to look by yourself. Google is your friend !
What you are asking right is the basic and you certainly won't get a complete course here. I can however advise you to look for HTML/CSS MOOC or so (OpenClassrooms might offer free english course, unless you prefer french ?).
You might also like Bootstrap, if you give it some thought : Bootstrap Website
By all means, Happy Easter !
Put the rest of code between <div class = "rest"> </div> and include the following css.
body {
margin: 0, padding:0;
}
.rest {
margin: 5px
}
You could do a css reset by placing the following at the top of your css file:
* {
margin: 0;
padding: 0;
border: 0;
}

Need CSS sidebar height to expand with content

I have a two column layout, with a gray sidebar on the right. I need the sidebar's height to expand when the height of the left column is increased (due to content being dynamically expanded). I can make the sidebar fit a static page, but I cannot get it to increase in size with the rest of the page. Did some Googling, but couldn't find a work-around that worked for me.
Does anyone know how to do this?
This is a common problem when using DIVS for this type of layout.
If you google 'Faux column' you should get some answers.
eg. http://www.alistapart.com/articles/fauxcolumns/
This may be slightly off but if you use jQuery on your site you can perform a quick calculation and resize all DIVs sharing a similar class to the maximum height:
$('.elements').height(Math.max($('#div1').height(), $('#div2').height()));
I have been haunted by this problem for a while and I wrote an article about this issue: Done with faux columns. Here is what I argued:
JavaScript based solution for this
problem is not worse than any other
solution. In fact if you are using
JavaScript, you may save a few hours
of frustration of trying to get things
working. People will warn you against
this by saying “What will happen if
the user turned off JavaScript?“.
Believe me, if the user has turned off
JavaScript, most of the web is broken
for him anyway. Your sidebar does not
matter to him.
As cballou mentioned, the simplest way to do this thing is to use JQuery code:
$(".sidebar").height(Math.max($(".content").height(),$(".sidebar").height()));
I changed the background-color to the same color as my sidebar, on that specific page, although I do have backgrounds for all my sections rather than one overall background. But that might not work for everyone.
In my stylesheet,
.sidec
{
background-color:#123456;
}
In my HTML page,
<body class="sidec">
content....
</body>
I recently saw a quite creative solution to this problem using the CSS properties position:absolute and border.
Definitely worth checking out to see if it works for you.
Link: http://woorkup.com/2009/10/11/really-simple-css-trick-for-equal-height-columns/
I'm not sure if this will help, as I'm a newbie. However, when struggling with getting my sidebar to show the whole content when I doubled it's size I did the following. I was changing my height and width with no response until I changed the class. My class was listed SB frame SB width. So when I changed my class to read SB height SB width it fit to my content instead of the original frame size. I also tried SB max sb width with worked too, but it took out my footer menu bar (meaning it wouldn't show it anymore). I went back to SB height SB width, and all is well. That's super duper elementary for all of you I'm sure, but just in case there is another newbie reading this that doesn't understand much about html code like myself... I hope this helps =)
Happy Holidays Everyone!
hugs, tara
I'm guessing you want to apply certain effect to your layout such that it will require both columns to resize together. If you want to dynamically change the values of the height of the columns, I doubt it will work simply with css unless you implement some javascript to control the style.
As Dal suggested, do look at the link on faux columns. As the name suggests, the solution isn't much about modifying the columns height. Instead, it gives the "illusion" that both columns appear to be of the same height when in reality they are not -- and is with the use of tiles of background image.
The idea is there isn't a need to complicate the mark-up. Simple structure with a touch of "illusion" with images is a common practice in web design.
Regards,
Jonah
With the poor attitude towards new members on here I expect to be barracked for this answer, here goes.
I got around this problem by creating a background image 960px wide 1px high with the two colors I needed for the columns in their respective widths (780px and 180px). I then used this as the background image for my container repeated on the y axis and made the content and the right sidebar background-color: transparent.
.container {
width: 960px;
background-color: #FFFFFF;
margin: 0 auto;
background-image: url(../images/bgs/conbg.jpg);
background-repeat: repeat-y;
}
.sidebar1 {
float: right;
width: 180px;
height:auto;
background-color:transparent;
padding-bottom: 10px;
}
.content {
padding: 10px 0;
width: 780px;
background-color:transparent;
float: right;
}
I am sure that this method has its limitations but it works perfectly on all my pages.
It is possible that I have not explained this very well, if so, be nice about it will you please. I will endevour to expand on my method(which is probably already common knowledge).