When scrolling content goes overtop of fixed background - css

I feel like this should be an easy answer but cant figure out how to achieve this effect.
Essentially i'm trying to do this: http://demo.smooththemes.com/theone/
one this site, when you start scrolling the image stays fixed and the content scrolls over top. Any ideas?
Thanks for you help.

example
http://jsfiddle.net/gvMLS/
HTML
<div id="header">
</div>
<div id="content">
content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>
</div>
CSS
#header {
position: fixed;
top: 0;
height: 20px;
width: 100%;
background-color: #ff0000;
}
#content {
position: absolute;
top: 20px;
bottom: 20px;
width: 100%;
background-color:#fff;
overflow: auto;
}

Related

when css position sticky stops sticking

I was wondering why position: sticky works for some x-axis-scrolling, but once you scroll past the initial width of the screen width, your 'sticky div', stops sticking.
In this example, I have a left-side-bar that sticks to the left (please note that I cannot use position: fixed or position: absolute, because in my actual project both the left-div and the right-div need to scroll up and down along the y-axis, hence we only want left-side-sticking)
is there an additional CSS parameter I can define, such as
left-sticky-distance=999999%
or something like that?
some test code illustrating is below
<html>
<body>
<div style='
position:sticky;
z-index:1;
left:0;
width:100px;
height:200px;
overflow: hidden;
background-color:#ff0000;
opacity:0.8;'
>
</div>
<div style='position: absolute; top: 10; left: 10; width: 200; height:50px; background-color: blue'>B</div>
<div style='position: absolute; top: 10; left: 110; width: 200; height:50px; background-color: blue'>C</div>
<div style='position: absolute; top: 10; left: 210; width: 200; height:50px; background-color: blue'>D</div>
</body>
<html>
After I add the height: auto; into body's CSS attributes as below, this auto-hiding problem is fixed.
body {
background: #fff;
color: #444;
font-family: "Open Sans", sans-serif;
height: auto;
}
Hope it will be helpful to you. :)
This question: https://stackoverflow.com/a/45530506 answers the problem.
Once the "sticky div" reaches the edge of the screen, it is at the end of the viewport of the parent element. This causes the sticky element to stop and stay at the end of parent's viewport. This code pen provides an example: https://codepen.io/anon/pen/JOOBxg
#parent{
width: 1000px;
height: 1000px;
background-color: red;
}
#child{
width: 200px;
height: 200px;
background-color: blue;
position: sticky;
top: 0px;
left: 0px;
}
body{
width: 3000px;
height: 3000px;
}
<html>
<div id="parent">
<div id="child">
</div>
</div>
</html>
What i've just realized is that is stops sticking because you haven't captured an overflow. if you've specified an overflow: hidden;, then check that all content within that axis fits perfectly on all screen sizes and if not then make the necessary adjustments to make the content fit. This also happens when you have specified the height of a div and the content overflows past that height in a certain screen sizes.
I hope this helps anyone that made the same mistake i did.

How to hide the upper part of a div with CSS

I need to create the illusion that an article's content is sliding underneath it's title when scrolling the page. The HTML looks like this:
<div class="wrapper">
<div class="header">
<h1>Title</h1>
</div>
<div class="body">
<p>a lot of content</p>
</div>
</div>
CSS looks like this at this point:
.wrapper{
height: 100vh;
width: 50%;
margin-left: 25%;
margin-top: 100px;
position: relative;
}
.header{
padding: 20px;
background-color: #fff;
position: fixed;
display: block;
box-sizing: border-box;
width: calc(50% - 8px);
z-index: 2;
}
.body{
z-index: 1;
top: 120px;
position: absolute;
padding: 20px;
background-color: #fff;
}
https://jsfiddle.net/joris508/frad472j/
Because there's an image in the background of the real website, I can't just put an element with a higher z-index to the top to hide that part.
I also tried to make the content portion (.body) scrollable itself. That created the right effect visually, but because the background-image on the page has a parallax scroll effect, scrolling the div itself caused problems.
Is there any solution to this problem?

Keep Footer below dynamic content

so I'm trying to tame the Footer so that it stays below the dynamic content container, but whatever way I try it (Pos: Abs, Bottom: 0; etc etc) it either appears halfway up the content or fixed at the bottom. Either I don't want. It would be appreciated if someone could shine a light on my problem.
HTML:
<div id="Content">
<div id="G6"></div>
<div id="Post-Block">
<div id="block">
<div id="feat-img"></div>
<div id="date"></div>
</div>
</div>
<div id="Footer">
<div id="G7"></div>
<div id="FooterBreak"></div>
<div id="FooterBG"></div>
<div id="FooterLinks">
</div>
<div id="Copyright">
</div>
<div id="Copyright2">
</div>
<div id="FooterBreak2"></div>
</div>
</div>
CSS:
#Footer {
width: 100%;
height: 230px;
position: absolute;
left: 0;
bottom: 0;
}
#Content {
z-index: 7;
background: url(/images/content%20bg.jpg) repeat left top;
position: absolute;
top: 336px;
width: 999px;
height: auto;
color: #fff;
min-height: 950px;
margin: 0 0 230px;
}
html {
position: relative;
height: auto !important;
}
body {
z-index: 0;
background: url(/images/background-texture%20d.jpg);
left: 0;
}
#page {
z-index: 1;
width: 1000px;
height: 1000px;
margin-left: auto;
margin-right: auto;
}
EDIT: When I used the Chrome dev tools to inspect the Crow's Perch website, it looks like your problem is that the height of your HTML is smaller than your content (ie, you use negative bottom values in your absolute positioning for some of your content). Given this, you could add bottom: -865 to #footer, but given that you said your content is dynamic, that's an EXTREMELY brittle solution. Unfortunately, since you're pixel-pushing all of your elements, I don't think there's a way to have your footer respond dynamically to your changing content. More comprehensive refactoring of your code is likely necessary.
Good luck!

CSS header position:fixed causing body div to dissappear

To keep it short here's the example of the problem.
http://jsfiddle.net/2KTFG/1101/
see the first paragraph dissappears behind the header
html
<div id='header'>
<div id="div_1">
<p>hello</p>
</div>
<div id= "div_2">
<p>hello</p>
</div>
</div>
<div id='body'><p>why this goes behing previous div?</p>
<p>why this goes behing previous div?</p>
<p>why this goes behing previous div?</p>
</div>
css:
#header {
position: fixed;
top: 0px;
height: 50px;
width: 100%;
background: green;
}
#div_1 {
margin: 0 auto;
}
#div_2 {
margin: 0 auto;
}
#body{ margin-top: 30px; height: 3000px; overflow: auto; }
thanks in advance
Because you set the margin of your body to 30 and the height of the header to 50px.
Because the #body (margin-top:30px) is not enough to clear the header. Increase the margin value to push the first paragraph down.
I hope this helps
Giving something position:fixed; will cause that element to be fixed to wherever you place it in the browser. Since your paragraph div doesn't have any position styles, the header will be placed on top of it.
If you give each element position: relative; they will stack on top of each other.
#header {
position: relative;
top: 0px;
height: 50px;
width: 100%;
background: green;}
#body{ height: 3000px; overflow: auto;position:relative; }
Example in fiddle.

Can I stretch an element to the right side of a browser window, from within a centered wrapper?

I'm having some trouble figuring out how to do this. I want to have a wrapper so my site is centered, but one of the header elements needs to stretch all the way to the right edge of the page, but without expanding the width of the page and adding scrollbars.
See here: http://i49.tinypic.com/6rkaxc.jpg (new poster so can't add image)
The blue outline represents the centered wrapper, and the orange box is the header div that I'm trying to get to fit to the right side of the page. I've got it to work using 100% width but it creates a horizontal page scroll since it's making it the same width as it's parent. I want it to expand for users that have higher resolutions so it always fits snug to the right side. I hope this makes sense.
my code looks something like...
<body>
<div id="wrapper">
<div id="header">
</div>
<div id="left">
</div>
<div id="right">
</div>
</div>
</body>
CSS:
div#wrapper {
margin: 0 auto;
width: 1020px;
position: relative;
}
div#header {
height: 150px;
position: absolute;
left: 510px;
width: 100%;
}
div#left {
width: 510px;
float: left;
}
div#right {
width: 100%;
float: left;
}
I'm pretty new to this stuff so if you notice any errors here or bad practices please point them out! Thanks for the help! :)
Since you want your content to be fixed width, a strategy would be to have containers for both left and right contents. This allows you to use width: 100% for the header which will extend to the end without scroll bars. You then make the header relative to the right container. Here is a jsfiddle you can play with.
Note I made the widths smaller so it would fit in my jsfiddle window.
HTML:
<body>
<div id="wrapper">
<div id="leftContainer">
<div id="left">
This is left
</div>
</div>
<div id="rightContainer">
<div id="header">
This is a header
</div>
<div id="right">
This is right
</div>
</div>
</div>
</body> ​
CSS:
div#wrapper {
text-align: center;
width: 100%;
position: relative;
white-space: nowrap;
overflow-x: scroll;
}
div#header {
z-index: 1000;
height: 150px;
position: absolute;
left: 0;
width: 100%;
background: green;
}
div#leftContainer {
float: left;
width: 50%;
height: 500px;
display: inline-block;
}
div#left {
float: right;
width: 260px;
height: 300px;
background-color: purple;
}
div#rightContainer {
position: relative;
float: right;
width: 50%;
height: 500px;
display: inline-block;
}
div#right {
width: 260px;
height: 300px;
background-color: yellow;
}
Try this one. I changed the wrapper width to 80%. Not sure if that's ok. But I works well when expanding the page. Moved the header outside of wrapper and also added background color for clarity.
Note 1: right DIV's margin-top is same size as header DIV's height.
HTML
<div id="outerWrapper">
<div id="header">
Header
</div>
<div id="wrapper">
<div id="left">
Left
</div>
<div id="right">
Right
</div>
</div>
</div>
CSS
div#wrapper {
margin: 0 auto;
width: 80%;
height: 100%;
position: relative;
background-color: #CCCCCC;
}
div#header {
height: 150px;
float: right;
position: absolute;
left: 50%;
width: 50%;
background-color: yellow;
}
div#left {
width: 50%;
height: 100%;
float: left;
background-color: red;
}
div#right {
width: 50%;
height: 100%;
float: left;
margin-top: 150px;
background-color: blue;
}
Hope this helps.

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