I am using ASP.NET Express to work on a site at cardinal14all.org.
When viewing the site in Design Mode, the background image shows fine, but not in the browser.
HTML:
<div id="content-wrap" >
CSS:
#content-wrap {
width: 1040px;
margin: 0 auto;
background: url('../Images/backingImage.png') repeat-y left top;
}
I've checked some other answers that relate to Forms Authentication and I'm not using that here so any help is appreciated.
The background image shows up just fine, the problem is that the height of the element is zero, so you can't see it.
The #content-wrap element only contains floating elements, so they don't affect the height of the element.
Add overflow: hidden; to the style for the element, and it will contain its children.
Related
I have an angular page, home, which is comprised of 2 components and a router-outlet
<div class="home-container">
<header></header>
<sub-header></sub-header>
<router-outlet></router-outlet>
</div>
I want the home-container above to always be, at a minimum, full screen height. The header should show, then the sub-header, then the contents of the router-outlet should always fill up at least the rest of the screen (or more if there's more content of course).
Normally this is easy but it seems the router-outlet is messing it up. Example can be seen http://plnkr.co/edit/56k9ZabLAGujBoX8Lsas , hit run and then click the "Heroes" link to route. In this example I don't want the Heroes div to be taller than the screen, and don't understand why it is.
My styles to accomplish this are. (assume router-outlet is on 'my-page')
html, body {
height: 100%;
}
.home-container {
height: 100%;
}
.my-page {
height: 100%;
}
My expectation here obviously is that home-container is full screen, shows header, shows sub-header, and that my-page then fills in at a minimum the rest of the vertical height.
What is actually happening though, is that there's a scroll bar with available height that appears equal to my header and sub-header.
This plnkr http://plnkr.co/edit/56k9ZabLAGujBoX8Lsas illustrates exactly my meaning. If you click Run and then the link for "Heroes" you will see the router-outlet contents, in this case heroes-list.component, with a green background. I do not understand why the green here is bleeding below the screen when everything is set to 100%
Update I have tried using all manner of different CSS attributes to different levels in this nesting. Including 100vh vs 100%, min-height vs height, and every combination of body/html/home-container/my-page. I have also tried the same with Angular's CSS :host, to the same result of no different
Update2 If I move it out of the element then everything behaves as you'd expect and there's no vertical scroll bar. Something about the router-outlet wrapper adds vertical space somewhere but I cannot figure out where or what is causing it.
Final Update The below answers might be useful for some applications but I ended up just solving it by giving the .my-page a specified height, just doing height: calc(100vh - $headerheight - $subheaderheight) which gets the job done
As far as I understand, 100% on a child will be equal to the size of the parents natural height. If you want to fill the space available, you really should be using flex unless you have a requirement to support IE9 and below.
I would update your Anchors to be contained in a div (or another wrapper)
<h1 class="title">Component Router</h1>
<div>
<a [routerLink]="['CrisisCenter']">Crisis Center</a>
<a [routerLink]="['Heroes']">Heroes</a>
</div>
<router-outlet></router-outlet>
I would then utilize flexbox to allow the content to expand as required
.hero-list {
background-color: green;
height: 100%;
overflow:auto
}
undefined {
flex: 1;
}
body, html, my-app {
height: 100%;
}
my-app{
display: flex;
flex-flow: column;
}
Plunker to test: http://plnkr.co/edit/yE1KOZMr1pd5jQKlVYIN?p=preview
On chrome i still have scroll bars due to an 8px margin on body - this can easily be removed with CSS for a scroll free full height experience.
There are two causes that make your <body> element taller than 100% of the viewport:
Default margins of the <body> element that come from the browser's built-in styles and usually are 8px. This means that the <body> element will be as tall as the <html> element, but also will have 8px space above it and below it, causing the <html> element to overflow.
The top margin of the <h1> element "falls out" from the container due to margin collapsing. This makes the space above the <body> element equal to the default top margin of <h1> (about 21px instead of 8px).
Setting zero margin to <body> (part of ToTaTaRi's answer) helps you to solve the 1st issue. To solve the second one, you should make the <body> element or (probably better) the .my-app container establish the new Block Formatting Context. The easiest and most cross-browser way for this is setting the container overflow:hidden (other options are display:flow-root, which works for modern Chrome/Firefox, or column-count:1, which works in IE10+ and all modern browsers, you can compare nearly all the options in this live example).
First of all you should reset browser default styles at least somehow like this:
* {
padding: 0;
margin: 0;
box-sizing: border-box;
}
Then you could achive what you want without a flex layout if prefered through splitting the page into a header section and main content section with a preset division... So lets say the heading and the links go together into a container div with i.e. a height of 20% and the main content which is at the moment hold in a tag "undefined" gets a height of 80%, if you now set the height of the app container to 100% or 100vh it should work as expected!
EDIT (because the topic is still open...):
Have you tried this css code like explained above, works like charm!?
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
html, body, my-app {
height: 100%;
height: 100vh;
}
h1 , h1 + div {
height: 10%;
height: 10vh;
}
undefined {
display: block;
background-color: green;
min-height: 80%;
min-height: 80vh;
}
I have a DIV with position absolute that contains an INPUT field, i need this input to be centered vertically and horizontally inside the div which i have accomplished with display:block and text align, the problem is that the width property is not working the same way for IE (10 and below), the parent div have the proper width in chrome and firefox but a totally different one in IE10,9 and 8.
Just in case this information is relevant, the parent div is inside another div with position relative. I know it sounds like a question from back to the future but i was really surprised to notice that that im still having this issue after normalizer, etc.
Here's the code
HTML and CSS
<div>
<input type="text" />
</div>
div {
position:absolute;
background: blue;
width: 180px;
padding:8px 0;
display:block;
}
input {
border-radius: 5px;
margin: 0;
height: 20px;
position: relative;
display: block;
margin: 0 auto;
}
The problem is caused by the em units.
If you compare IE and Chrome you will see that the green bar in the menu is more to the left in IE than Chrome. That is because there is a pixel difference here and there in the font-size.
They are calculated differently. I think IE approximates differently.
Maybe instead of trying to make the 2 browsers look the same, you could make it look good on both browsers. Users will not know.
Use either a CSS file that gets added in IE browsers, or detect the browser with javascript and add classes on body (similar to modernizr), or use CSS hacks.
I am trying to tweak a wordpress site but can't seem to get one of my parent div's backgrounds to be visible through the child divs on top. I've got the background image set for #main. The image I'm using fades to white at the bottom but, in the rendered page, I can only see about the top 23 pixels or so before the rest is blocked...I think by #primary.
The site uses a child theme based on Responsive and can currently be viewed here. I would copy/paste code for your convenience but I'm no longer certain what part of the code is responsible for what I'm (not) seeing. So I apologize in advance if this is not enough information to go on :-/
Looks to me like you have a float problem and the div#main is collapsing. Try one of the various clear-float techniques to prevent that.
For example, try #main { overflow: hidden } as a test - that will normally prevent the collapse.
Classic clear fix issue. Give #main an overflow:hidden or try the micro clear fix if any content is spilling out of the box.
#main {
background: url("http://wp.massosteopathic.org/wp-content/uploads/2013/02/headerhand-contd.jpg") no-repeat scroll 0 0 transparent;
clear: both;
overflow: hidden;
padding: 1.625em 0 0;
z-index: 1;
}
The #main div is only 24px high. This is because all child divs are floating.
add a
<div class='clear'>
with
.clear { clear: both}
just before the closing tag of your #main
Image Rollover, no JavaScript, no Link, pure CSS, code validate and Browser compatible.
Hello all, I have been working 24hours strait to come up with this fairly easy solution. I want to know if everything is all right and if there are ways to improve. It's quite elegant, here we go:
I have only one image "Logo" but it will show as 2 different logo each with a rollover effect.
I use a sprite (only 1 image containing my 4 logos) and I just change it's position.
Here I insert my image in a div with
<div id="logo-rollover-1" class="logo-rollover">
<img title="whatever" alt="whatever" src="path-to-your-image">
</div>
Then I insert in another div the same image but with a different id
<div id="logo-rollover-2" class="logo-rollover">
<img title="whatever" alt="whatever" src="path-to-your-image">
</div>
Now my CSS:
.logo-rollover {
background: #ffd42a url('path-to-your-image');
width: 230px;
float: left;
height: 130px;
overflow: hidden;
position: relative;
}
.logo-rollover img { width: 460px; height: 260px; }
.logo-rollover :hover { opacity: 0; filter:alpha(opacity=0); }
#logo-rollover-1 { background-position: 0px -130px; }
#logo-rollover-2 { background-position: -230px -130px; }
#logo-rollover-2 img { right: 230px; position: relative; display: block; }
Explanations: when someone hover an image it becomes transparent and show the background witch is the same image but with a different position. opacity: 0 for Firefox, Google and filter:alpha(opacity=0) for Explorer. position: relative on the .logo-rollover class is for compatibility of hidden overflow with IE6 & IE7. display:block; is added to the id img for the Opera browser.
No Hack: When there is no link, there is no need for href="#" or "javascript:void(0)"
Advantages: instead of requesting 4 (or more) images, there is only 1 image (the total size of 1 image sprite is smaller then the total size of 4). the rollover is instant as the image is already downloaded. No hack, no false link, code validate. Add a title to the image. The only browser not rolling over is IE6 but the site is not broken, the logo show correctly. There is a hack for activating hover for IE6 but I didn't bother as IE6 is dead.
Tip: use the same path for your image everywhere.
I mean the "path-to-your-image" needs to be the same for all call. Because of browser caching.
Is this the best elegant way? Can this code be improve? I hope it will help someone because it was a real pain to develop thank to others user here I found some tricks here and there and came up with this.
Comment appreciated.
Why not completely removing inner <img> and create logo using CSS background?
<a id="logo">Logo</a>
#logo { width:100px; height:60px; background:url(path/to/logo.png) 0 0;
overflow:hidden; text-indent:-1000px; display:block; }
#logo:hover { background-position:0 -60px; }
Explanation:
<a> is the only element that supports :hover pseudo selector on IE6. If you want native solution for hover logo you must use this tag. Some people sometimes wrap other elements ex: <a><div></div></a> to give div hover property by accessing it from CSS using a:hover div { }
overflow:hidden; and text-indent:-1000px; hide text from inside the div. It is a good practise to leave text inside for accessibility reasons.
background sets the background color of your div, initialy alligned to 0, 0
background-position does the actual trick and shifts the image - it is moving it within the 'viewport' div making different part of the image visible.
nice description! I see one small improvement: put the background und no-repeat definition in your .logo-rollover class to have less css code (you have to write it only once instead of twice)
yes another problem with this scroll bar
alright so I started the website over again that was mentioned here
and I am having problems with this scroll bar again
alright so all I have is a single image in a div tag
<div align="center" id="SuggestionBox">
<img src="images/SuggestionBox.jpg"/>
</div>
this code displays right but
when I make the browser window small enough that the full image can not be seen it doesn't give me a scroll bar to see the whole image
hopefully this makes sense
I am using firefox
EDIT:
I tried overflow:scroll and it did not work
this was the outcome
and this happened in the middle of the page
I also tried 'overflow:scroll' on the body of the page through css and all it did was show disabled scroll bars that did not change no matter the size of the browser
also some people are a bit confused
so
this picture might help
notice how the image is not fully shown
well, I want there to be scroll bars in case the user wants to see the whole image
but they're not appearing
also here is all my css code:
body
{
background-image:url("images/background.jpg");
}
a:hover
{
color:#FF0000;
}
table
{
background-color:#FFFFFF;
}
#SuggestionBox
{
position:relative;
right:375px;
}
thanks
Good Luck
get it?
I may not be understanding your question, but it looks like your problem is that you've disabled scrolling in the body but would like the div to scroll. #lukiffer's answer is right. When you resize your browser, however, the scrolling div, which is a fixed size, isn't overflowing because its content still fits.
Are you wanting your "SuggestionBox" div to anchor to the page so that it resizes along with the page? That would enable it to change sizes as the browser does and thus add scroll bars when its content doesn't fit:
#SuggestionBox
{
position: absolute;
/* Change these to establish where to place the div. All zeroes
means it fills its whole container */
top: 0;
bottom: 0;
left: 0;
right: 0;
overflow: scroll;
}
Update:
I don't get what #SuggestionBox is supposed to be. If you're just wanting a centered image link, you could get rid of the div and just have this as your markup:
<a id="SuggestionBox"></a>
And for that <a/>, you could have the following CSS:
#SuggestionBox {
display: block;
width: 100px; /* Or whatever the width is */
height: 100px; /* Or whatever the height is */
background-image: url(images/SuggestionBox.jpg);
margin: 0 auto;
}
If your reason for having the div was to give your link a right margin of 375px, your CSS could have the margin set to 0 375px 0 auto instead.
If you use this simple HTML/CSS, your body should be able to scroll normally (unless you have other CSS or HTML that you haven't posted that's breaking it).
div#SuggestionBox { overflow:scroll; }