I'm building an app in Webkit for Android using HTML and CSS. I have fixed position header and sometimes fixed position footer(based on the module). When the content is more, I don't want the scrollbar to overlay the fixed header. Hiding it behind the header will also work. How can I achieve this without fixing height for the wrapper or using height: calc(); CSS for the wrapper?
I want app scrollbar to be like this:
Instead, it is like this now:
Here is the sample code:
.header {
position: fixed;
background-color: red;
left: 0;
top: 0;
width: 100%;
z-index: 999;
height: 60px;
}
.wrapper {
padding-top: 60px;
min-height: 100%;
height: auto;
}
.footer {
position: fixed;
background-color: grey;
left: 0;
bottom: 0;
width: 100%;
height: 50px;
}
jsfiddle
You said that you don't want to fixe the .wrapperheight, but I think, you should fixe it, because there is no way to hide this scrollbar behind the div header element.
.wrapper {
margin-top: 60px;
min-height: 100%;
height: 320px;
overflow-y: auto;
}
Demo: http://jsfiddle.net/9hy6ybsz/4/
I'm not sure if my solution gonna work for you. You need to setup the height of your div="wrapper" and add CSS property overflow-y:
height: calc(100% - (60px + 50px));
Example, where 60px is the header height and 50px is the footer height
.wrapper {
margin-top: 60px;
overflow: auto;
background: yellow;
height: calc(100% - (60px + 50px));
display:block;
}
Working JSFiddle -> http://jsfiddle.net/9hy6ybsz/1/
Create a new div tag , which acts as a parent tag.
and apply scroll for it.
then create the header div and maintain Fixed position.so you can get the scroll over the fixed DIV!
Related
I have a problem. When coding the side pages of the site, I can not tie the footer to the basement of the site. I use bootsrap classes. When trying to use such code:
html {
position: relative;
min-height: 100%;
}
body {
/* Margin bottom by footer height */
margin-bottom: 60px;
}
#footer {
position: absolute;
bottom: 0;
width: 100%;
/* Set the fixed height of the footer here */
height: 60px;
background-color: #f5f5f5;
}
the footer either remains in place, or it closes the content, approaching the navigation bar.
How can this problem be solved?
before
https://i.stack.imgur.com/qeg7Q.png
after use the code
https://i.stack.imgur.com/XnnaS.png
P.S. I apologize for bad english
Height of 100% doesn't work like you think it would. In this case, you're looking for vh units. I would also apply them to body, not html.
*{box-sizing: border-box;}
body {
/* Margin bottom by footer height */
margin: 0;
padding: 0;
min-height: 100vh;
position: relative;
}
footer {
position: absolute;
width: 100%;
/* Set the fixed height of the footer here */
height: 60px;
background-color: #f5f5f5;
bottom: 0;
}
<body>
content
<footer>
footer
</footer>
</body>
Here is a simplified JSFiddle of the problem.
As you can see, the content is beat out of alingment with the header because of the scrollbar.
As far as I know, the only way to deal with this is to calculate the width of the scrollbar using Javascript (David Walsh's excellent method springs to mind) and to set it as left/right: -scrollbarwidthpx value to the header.
However, considering the dynamic nature of the page I'm working on, with the headers place in the DOM and position changing depending on at what point the user has scrolled to, this is an option I am hoping to turn to only if there's nothing else I can do.
My question is, is there any way that I can maybe take the scrollbars or the content out of the flow while preserving a scrolling overflow, or otherwise align the two elements using only HTML/CSS? Are scrollbar widths consistent across all browsers/OS's that have them affect the flow? Or will I have to resort to using Javascript to align them?
Thanks!
html, body {
width: 100%;
height: 100%;
overflow: hidden;
margin: 0;
}
.scroll {
overflow: auto;
width: 100%;
height: 100%;
}
#content{
width: 400px;
height:auto;
margin: auto;
background:gray;
}
.header {
width: 400px;
position: fixed;
margin: 0 auto;
height: 60px;
background: yellow;
z-index: 10;
}
.content {
height: 1200px;
background: linear-gradient(red, orange);
width: 100%;
margin: auto;
position: relative;
z-index: 1;
border-top:61px solid;
border-bottom:1px solid;
}
<div class="scroll">
<div id="content">
<div class="header"></div>
<div class="content"></div>
</div>
</div>
<div id="first">Something</div>
<div id="last">something too</div>
<style>
#last {
position: absolute;
margin:0;
padding:0;
bottom:0; /*yes this div is at the bottom*/
}
#first {
}
</style>
My problem is that I can't reach last div with the border of the first div. I want last div to be at bottom and first div to have overflow:auto;? But it doesn't work. When I fill my div some text nothing is showing no scrollbar or anything like that and the first div kind of goes behind the last div even though I haven't assigned them any z-index values.
How Can I solve this? I want my first div to grow until it reaches last div and fill it with text maybe with scrolling appearing when it is only needed. I mean when two divs touch each other kind of.
This will give you a fixed size footer (#last) but the content (#first) expands as needed:
body {
margin: 0px;
padding: 0px;
}
#wrapper {
position: absolute;
top: 0;
bottom: 200px;
left: 0;
right: 0;
}
#first {
background-color: #5588FF;
width: 100%;
max-height: 100%;
overflow-y: auto;
}
#last {
background-color: #FF8855;
position: fixed;
bottom: 0px;
height: 200px;
width: 100%;
}
See this fiddle for the full solution: http://jsfiddle.net/xWa9f/4/
Is this what you want? Fiddle link: http://jsfiddle.net/emw2x/2/
body, html{
height: 100%;
}
#last {
margin:0;
padding:0;
bottom:0; /*yes this div is at the bottom*/
border: 1px solid black;
width: 100%;
height: 10%;
}
#first {
border: 1px solid red;
height: 90%;
width: 100%;
padding: 0;
margin: 0;
overflow: auto;
}
Give that a try to see if that's what you want.
if you accept some javascript in the mix, i have this solution for you.
first, change the absolute positioning to fixed positioning of the #last div.
set overflow:auto to the #first div and the javascript does the rest (you need jQuery):
(function () {
var heights = window.innerHeight;
var outerHeights = $("#last").outerHeight(true);
jQuery('#first').css('height', (heights - outerHeights) + "px");
})();
basically it calculates the window height of your monitor, it subtracts the height of the #last div and gives what's left to the #first div. when the content exceeds the available pixel height, a scroll bar will appear.
check it here: http://jsfiddle.net/vlrprbttst/rR7Uu/2/
the plus here is this works at any window resolution, so you don't have to worry about screen resolutions and you don't have to worry about the height of your #last div (margins, paddings, borders, whatever included)
I'm having some trouble with a page that has a floating background image (absolutely positioned) where the image is dynamically changed out via javascript. Basically this is a big gallery that changes behind a portfolio:
I have a section of markup that looks like this:
<div class="content">
<div class="content-container">
<div class="content-image">
<img id="galleryTarget" src="../images/main/source.jpg" class="image-resize" alt="background image"/>
</div>
...etc...
Here's the relevant CSS classes:
.image-resize {
position: absolute;
min-height: 750px;
min-width: 1000px;
width: 100%;
left: 0;
text-align: left;
vertical-align: middle;
margin-top: -25%;
top: 25%;
}
.content-image {
position: absolute;
top: 0;
left: 200px;
width: 100%;
min-height: 750px;
max-height: 750px;
min-width:1000px;
overflow:visible;
opacity: 0.5;
z-index: 1;
}
.content-container {
position: relative;
min-height: 750px;
}
.content {
position: absolute;
top: 0;
width: 100%;
max-height: 750px;
overflow: hidden;
background: purple;
z-index: -5;
}
This is all absolutely positioned so that I can swap out the image source with Javascript and then dynamically resize the container (background) to fill the new content. There's minimum bounds so it always has a size.
What I'm trying to do is to pin this image to a CENTER point so that when it is resized the interesting parts of the image (rarely the top left corner) are displayed.
In the inspector in chrome I see that top and margin-top are never the same value even though they have the same (percentage) value. What am I missing here?
Example:
top: 187.5px and margin-top: -389.5px. It looks as though margin-top uses the img-source resolution and top uses something for the life of me I can't figure out--I'm assuming min-height + the offset in the page?
Any help here would be appreciated, this is a rather large part of the design and I'd love to have it better than what it is.
Browsers:
Chrome Version: 30.0.1599.66 m
Android Chrome: 30.0.1599.82
This does fix the problem in chrome--but I'd like to know why it is using 1000px as the baseline for the margin instead of the 750px of the unit.
/*Hack of a vector similar to 50%*/
margin-top: calc(-50% * 0.75);
top: 50%;
Is it possible to use overflow: scroll on a div that has height set to auto?
I have a div with an unordered list inside of it. The amount of items in the list is variable so there is no way I can use a fixed height. The div that contains the unordered list is where the scrollbars need to be, here is my code:
#page {
height: auto; /* default */
overflow-y: scroll;
overflow-x: hidden;
}
As stated, the unordered list is contained within the #page div. The height of the page is assigned by the unordered list's value. Is there a way to make overflow: scroll work on a div with variable height like this or must I use JavaScript to do this?
Thanks
One way of approaching this design...
Suppose that you have the following HTML:
<div class="main">
<div class="inner">
<ul>
<li>Some list items...</li>
...
</ul>
</div>
</div>
The .main block is fitted to the page, for example, by absolute positioning:
.main {
border: 2px dashed blue;
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
}
The .inner block holds the navigation list that can cause scrolling:
.inner {
border: 2px dotted red;
position: absolute;
top: 10px;
bottom: 10px;
left: 10px;
right: 10px;
overflow-y: scroll;
}
In this example, I constrain the height of the .inner block to fit within .main,
and set overflow-y: scroll, which creates a scroll bar contained within the edges
of the container block.
You may have to adapt this to your mobile platform, but the concept should still apply.
Demo fiddle: http://jsfiddle.net/audetwebdesign/ac4xT/
Simply put, if it has variable height (auto), it will never have overflow in the y axis (vertically), because the div will always grow to fit its contents.
overflow: scroll will force it to present a scrollbar, but it will always be disabled, because the contents will never extend beyond the displayed pane.
If you want vertical scrolling, you have to define a height, either in px, %, or em.
If you do height: 100%, the div will fill the height of the page, and scroll content that extends beyond the window's viewport height.
If you have a header area, try something like this:
body {
margin: 0;
}
#header {
position: absolute;
width: 100%;
height: 40%;
background-color: #ccc;
}
#body {
position: absolute;
top: 40%;
width: 100%;
height: 60%;
overflow-y: auto;
background-color: #eee;
}
<body>
<div id="header">
<p>Header</p>
</div>
<div id="body">
<p>Body</p><p>Body</p><p>Body</p><p>Body</p><p>Body</p><p>Body</p><p>Body</p>
<p>Body</p><p>Body</p><p>Body</p><p>Body</p><p>Body</p><p>Body</p><p>Body</p>
</div>
</body>
For a fixed-height header (per the comments), use absolute positioning with a top and botom value to position the scrollable div below it:
body {
margin: 0;
}
#header {
position: absolute;
width: 100%;
height: 60px;
background-color: #ccc;
}
#body {
position: absolute;
top: 60px;
bottom: 0px;
width: 100%;
overflow-y: auto;
background-color: #eee;
}
<body>
<div id="header">
<p>Header</p>
</div>
<div id="body">
<p>Body</p><p>Body</p><p>Body</p><p>Body</p><p>Body</p><p>Body</p><p>Body</p>
<p>Body</p><p>Body</p><p>Body</p><p>Body</p><p>Body</p><p>Body</p><p>Body</p>
</div>
</body>
Why not use max-height on the div?
max-height sets the maximum height to which an element can expand. I suppose what you want is the div to never go out of the screen. So you can set a max-height and then overflow: auto;