Can't add height:auto to the background - html

please see here.
I'd like to give a solid color to the comments area. This background color should enlarge according to the comments area. If there are a lot of comments it should have a big height, few comments, little height.
I have added the <section class="comment"> inside a new div called <div id="commentsbackground"> and I gave the following css:
#commentsbackground {
width: 6000px;
margin-left: -1172px;
background-color: #A6A8AF;
}
section.comment {
height: 500px;
margin-left: 1172px;}
With this I managed to add the large background that should work with all big monitor resolutions. Not sure if there was a simple way to do it.... but for sure it's not working as I'd like to.
I'd like to have height: auto;, but it doesn't work.
I hope you can help me to have the comments area with a different background color.
This should be the final result:
-post area -> white
-comments area -> grey
-footer -> black

Well, if you use overflow auto, all the gray background will fill all the screen :P
#commentsbackground {
width: 6000px;
margin-left: -1172px; /*Idk, why do you use that*/
background-color: #A6A8AF;
overflow:auto;
}

Either change containers to float:left or add a clearing method: http://www.webtoolkit.info/css-clearfix.html

Related

Defining width of page in section, rather than in body

I want my page to have a fix width, lets say 1440px. I usually put width in body and it applies to all elements. In my new project I need to have one section in white background, width being fixed makes it so that only 1440px is white. I managed to solve this by removing width from body and creating a class:
.width-fix {
width: 144rem;
margin: 0 auto;
padding: 0 1.2rem;
}
I set that class as additional to every section I don't needed colored.
Is this the right way to solve it or is there something better? Currently it works like a charm.
I started learning HTML/CSS 2 weeks ago, sorry if its dumb question
**Edit: Image for clarification
Yes, usually I work with a classname like container or section for all the most general default styling.
Every element is packed in a section which holds the right background-color and has a div with container for the right width and margins and padding.
So something like this:
.block {
background-color: green;
}
.container {
max-width: 1440px;
margin: 0 auto;
padding: 25px;
}
<section class="block">
<div class="container">
</div>
</section>

Placing an arrowbox between two sections

I don't really know how to approach this, but this is what I'm trying to do, placing the white arrowbox:
I know how to do an arrowbox, but placing it like that is a mystery to me. At the moment I have two sections, upper and lower, and then tried giving the box an absolute position, but didn't work.
How should I approach this problem? I'm sure there is an easy solution, but I'm not that experienced with CSS.
didn't understand your question very well myself. IF you are trying to position your box in the middle of the lower blue container with: position:absolute I would try this myself
.box {
height:100px;
width:300px;
background-color:red;
position:absolute;
top:-50px;
left:50%;
margin-left:-150px; /*this has to be half your box width negative margin*/
}
Don't forget to add position relative to your blue div (or fixed, or absolute... just not default static). A fiddle as an example ( I add css box arrow just in case you need it): http://jsfiddle.net/j5a0227s/1/
Clearly misunderstood your question. Please see the updated JSFiddle.
This places a green block below the middle circle, but by giving it the position: absolute, you can change the location with margin-top. I don't know how this reacts in responsive websites, you might want to tweak it a bit.
Edit2: Even better is to place the white block in the div you have above the circles. See this updated JSfiddle.
HTML
<div class="main">
<div class="container0">
<div class="hover2"></div>
</div>
</div>
CSS
.main {
margin-top:100px;
}
.hover2 {
height: 50px;
width: 100px;
background: green;
margin-left:180px;
position: absolute;
margin-top:60px;
}
.container0 {
background: purple;
width: 100%;
height:100px
}
Wrap your two sections with a div and take a close look at this interesting article: Centering in CSS: A Complete Guide.

CSS <div> Style Shorter than Child Element

I'm working on a project to better my knowledge of Spring MVC practices. To do this, I've been creating a very scaled down version of Twitter. Basically, a user can sign in and post a little blurb and also see a timeline of their previous blurbs and all their follower's blurbs.
I have a background image across the whole page and a container in the middle with a light blue background for just the post blurb box and the timeline. The light blue background only goes to the bottom of the visible page. If the timeline goes down past a single page view where you have to scroll down, the light blue background stops at the bottom of what was visible on the initial load.
I have my page defined like this:
The div class=blurb is the blurbs in the timeline.
<div id="container">
<div id="mainPanel">
<div id="timeline">
<div class="class="blurb"">
<span class="user">test</span> <span
class="displayName">Test User</span> <span class="bodytext">This is a small blurb.</span>
<span class="timestamp">1 hours ago</span>
</div>
<div class="blurb">
<span class="user">admin</span> <span
class="displayName">Test admin</span> <span class="bodytext">This is another small blurb.</span>
<span class="timestamp">1 hours ago</span>
</div>
</div>
</div>
</div>
The CSS style for the container is shown below.
#container {
width: 650px;
height: 100%;
margin: 0 auto;
padding: 10px;
background-color: #DDEEF6;
}
Can I modify that container CSS in a way to make it be as long as the timeline is? The timeline grows with every blurb post.
Screenshot with height defined to 100%
Screenshot with height undefined
UPDATE:
Okay, so it absolutely has to do with the floats. Thanks to the two commenters below. The #socialPanel is defined as such:
#socialPanel {
width: 250px;
float: right;
}
Using Chrome's developer tools, if I clear the float is drops the social panel below my blurbs/tweets and moves the light blue background all the way down the list of blurbs.
Any suggestions on what I could research to keep the socialPanel floating left at the top, but still have my light blue background use all the available height? Many thanks on helping me figure it out this far!
UPDATE TWO:
I combined the methods shown in the answer below to solve my problem. I added a div with class clearer with clear:both; and then removed the height: 100%; from the #container styling. This resolved the problem.
NOTE:
Adding the overflow: hidden; to my container's styling made the page cut off after the light blue area, it did not make the light blue area go all the way down.
Many thanks to all the help! I'm still learning and it was all very appreciated!!
Place overflow:hidden on the #container.
How does it work?
One would think placing this style on a container would hide the floats instead of containing them. What actually happens is that overflow:hidden makes the element establish a new block formatting context. This fixes the float containment of any children floating within it. This CSS fix is more practical then including an additional element in the HTML styled with clear:both and works on all modern browsers, including IE7+.
You probably just need to add a clearing div after your two inner divs. http://jsfiddle.net/c3vTU/1/
<div class="outer">
<div class="inner-left"> Stuff on the left</div>
<div class="inner-right">Stuff on the right <br/><br/></div>
<div class="clearer"> </div>
</div>
CSS
.outer {
width: 520px;
padding: 10px;
background-color: #eee;
}
.inner-left {
float: left;
width: 300px;
background-color: red;
}
.inner-right {
float: right;
width: 200px;
background-color: yellow;
}
.clearer {
clear: both;
}
As #MichaelIrigoyen noted, you can also just add overflow: hidden or overflow:auto (I think makes more sense) to your container. http://jsfiddle.net/c3vTU/4/ This is cleaner and I love it!
If you simply remove the height declaration (height: 100%;) from #container, it will expand as its children do (and the background of course, too).

Layer multiple <div>'s on top of one another each with different background

I want to stack one division on top of another each with different background. the background, ofcourse will be transparent (.png). This is to recreate an effect of a pattern on an image and avoid loading an entire 1366 x 768 image.
my html is somewhat like this
<body>
<div id="firstLayer">
<div id="secondLayer">
<div id="mainContent">
main page content
</div>
</div>
</div>
</body>
I have a radial gradient for the body, the #firstLayer contains the main logo, and the #secondLayer must consist the transparent pattern.
my first try at css was somewhat like this
#secondLayer{
background: url("../images/crtPattern.png") repeat scroll 0 0 transparent;
}
But the pattern doesnt show up at all. How can i bring this #secondLayer on top of #firstLayer but just below the #mainContent?
You need to give width and height to #secondLayer like this Demo
#secondLayer{
background: url("../images/crtPattern.png") repeat scroll 0 0 transparent;
width: 100%;
height: 100%;
}
Are you trying to do this -
#firstLayer{ background: red; height: 500px; }
#secondLayer{ background: green; opacity: 0.6; filter:alpha(opacity=60); height: 300px; }
Demo
Width and height are definitely required if you have no DIV content. If that doesn't fix the problem for you:
Check image paths, can you load the same image using the same image path in an IMG tag?
Is your stylesheet inline or loaded as a separate file - this will affect relative paths to the image file.
Is your webserver case-sensitive? Does the case of your path match the image?
Hope this helps.

Setting a div's height in HTML with CSS

I am trying to lay out a table-like page with two columns. I want the rightmost column to dock to the right of the page, and this column should have a distinct background color. The content in the right side is almost always going to be smaller than that on the left. I would like the div on the right to always be tall enough to reach the separator for the row below it. How can I make my background color fill that space?
.rightfloat {
color: red;
background-color: #BBBBBB;
float: right;
width: 200px;
}
.left {
font-size: 20pt;
}
.separator {
clear: both;
width: 100%;
border-top: 1px solid black;
}
<div class="separator">
<div class="rightfloat">
Some really short content.
</div>
<div class="left">
Some really really really really really really
really really really really big content
</div>
</div>
<div class="separator">
<div class="rightfloat">
Some more short content.
</div>
<div class="left">
Some really really really really really really
really really really really big content
</div>
</div>
Edit: I agree that this example is very table-like and an actual table would be a fine choice. But my "real" page will eventually be less table-like, and I'd just like to first master this task!
Also, for some reason, when I create/edit my posts in IE7, the code shows up correctly in the preview view, but when I actually post the message, the formatting gets removed. Editing my post in Firefox 2 seems to have worked, FWIW.
Another edit: Yeah, I unaccepted GateKiller's answer. It does indeed work nicely on my simple page, but not in my actual heavier page. I'll investigate some of the links y'all have pointed me to.
Ahem...
The short answer to your question is that you must set the height of 100% to the body and html tag, then set the height to 100% on each div element you want to make 100% the height of the page.
Actually, 100% height will not work in most design situations - this may be short but it is not a good answer. Google "any column longest" layouts. The best way is to put the left and right cols inside a wrapper div, float the left and right cols and then float the wrapper - this makes it stretch to the height of the inner containers - then set background image on the outer wrapper. But watch for any horizontal margins on the floated elements in case you get the IE "double margin float bug".
Give this a try:
html, body,
#left, #right {
height: 100%
}
#left {
float: left;
width: 25%;
}
#right {
width: 75%;
}
<html>
<body>
<div id="left">
Content
</div>
<div id="right">
Content
</div>
</body>
</html>
Some browsers support CSS tables, so you could create this kind of layout using the various CSS display: table-* values. There's more information on CSS tables in this article (and the book of the same name) by Rachel Andrew: Everything You Know About CSS is Wrong
If you need a consistent layout in older browsers that don't support CSS tables, you need to do two things:
Make your "table row" element clear its internal floated elements.
The simplest way of doing this is to set overflow: hidden which takes care of most browsers, and zoom: 1 to trigger the hasLayout property in older versions of IE.
There are many other ways of clearing floats, if this approach causes undesirable side effects you should check the question which method of 'clearfix' is best and the article on having layout for other methods.
Balance the height of the two "table cell" elements.
There are two ways you could approach this. Either you can create the appearance of equal heights by setting a background image on the "table row" element (the faux columns technique) or you can make the heights of the columns match by giving each a large padding and equally large negative margin.
Faux columns is the simpler approach and works very well when the width of one or both columns is fixed. The other technique copes better with variable width columns (based on percentage or em units) but can cause problems in some browsers if you link directly to content within your columns (e.g. if a column contained <div id="foo"></div> and you linked to #foo)
Here's an example using the padding/margin technique to balance the height of the columns.
html, body {
height: 100%;
}
.row {
zoom: 1; /* Clear internal floats in IE */
overflow: hidden; /* Clear internal floats */
}
.right-column,
.left-column {
padding-bottom: 1000em; /* Balance the heights of the columns */
margin-bottom: -1000em; /* */
}
.right-column {
width: 20%;
float: right;
}
.left-column {
width: 79%;
float: left;
}
<div class="row">
<div class="right-column">Right column content</div>
<div class="left-column">Left column content</div>
</div>
<div class="row">
<div class="right-column">Right column content</div>
<div class="left-column">Left column content</div>
</div>
This Barcamp demo by Natalie Downe may also be useful when figuring out how to add additional columns and nice spacing and padding: Equal Height Columns and other tricks (it's also where I first learnt about the margin/padding trick to balance column heights)
I gave up on strictly CSS and used a little jquery:
var leftcol = $("#leftcolumn");
var rightcol = $("#rightcolumn");
var leftcol_height = leftcol.height();
var rightcol_height = rightcol.height();
if (leftcol_height > rightcol_height)
rightcol.height(leftcol_height);
else
leftcol.height(rightcol_height);
Here's an example of equal-height columns - Equal Height Columns - revisited
You can also check out the idea of "Faux Columns" as well - Faux Columns
Don't go the table route. If it's not tabular data, don't treat it as such. It's bad for accessibility and flexibility.
I had the same problem on my site (shameless plug).
I had the nav section "float: right" and the main body of the page has a background image about 250px across aligned to the right and "repeat-y". I then added something with "clear: both" to it. Here is the W3Schools and the CSS clear property.
I placed the clear at the bottom of the "page" classed div. My page source looks something like this.
body
-> header (big blue banner)
-> headerNav (green bar at the top)
-> breadcrumbs (invisible at the moment)
-> page
-> navigation (floats to the right)
-> content (main content)
-> clear (the quote at the bottom)
-> footerNav (the green bar at the bottom)
-> clear (empty but still does something)
-> footer (blue thing at the bottom)
I hope that helps :)
No need to write own css, there is an library called "Bootstrap css" by calling that in your HTML head section, we can achieve many stylings,Here is an example:
If you want to provide two column in a row, you can simply do the following:
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<div class="row">
<div class="col-md-6">Content</div>
<div class="col-md-6">Content</div>
</div>
Here md stands for medium device,,you can use col-sm-6 for smaller devices and col-xs-6 for extra small devices
The short answer to your question is that you must set the height of 100% to the body and html tag, then set the height to 100% on each div element you want to make 100% the height of the page.
A 2 column layout is a little bit tough to get working in CSS (at least until CSS3 is practical.)
Floating left and right will work to a point, but it won't allow you to extend the background. To make backgrounds stay solid, you'll have to implement a technique known as "faux columns," which basically means your columns themselves won't have a background image. Your 2 columns will be contained inside of a parent tag. This parent tag is given a background image that contains the 2 column colors you want. Make this background only as big as you need it to (if it is a solid color, only make it 1 pixel high) and have it repeat-y. AListApart has a great walkthrough on what is needed to make it work.
http://www.alistapart.com/articles/fauxcolumns/
I can think of 2 options
Use javascript to resize the smaller column on page load.
Fake the equal heights by setting the background-color for the column on the container <div/> instead (<div class="separator"/>) with repeat-y
Just trying to help out here so the code is more readable.
Remember that you can insert code snippets by clicking on the button at the top with "101010". Just enter your code then highlight it and click the button.
Here is an example:
<html>
<body>
<style type="text/css">
.rightfloat {
color: red;
background-color: #BBBBBB;
float: right;
width: 200px;
}
.left {
font-size: 20pt;
}
.separator {
clear: both;
width: 100%;
border-top: 1px solid black;
}
</style>
This should work for you: Set the height to 100% in your css for the html and body elements. You can then adjust the height to your needs in the div.
html {
height: 100%;
}
body {
height: 100%;
}
div {
height: 100%; /* Set Div Height */
}
It's enough to just use the css property width to do so.
Here is an example:
<style type="text/css">;
td {
width:25%;
height:100%;
float:left;
}
</style>
.rightfloat {
color: red;
background-color: #BBBBBB;
float: right;
width: 200px;
}
.left {
font-size: 20pt;
}
.separator {
clear: both;
width: 100%;
border-top: 1px solid black;
}
<div class="separator">
<div class="rightfloat">
Some really short content.
</div>
<div class="left">
Some really really really really really really
really really really really big content
</div>
</div>
<div class="separator">
<div class="rightfloat">
Some more short content.
</div>
<div class="left">
Some really really really really really really
really really really really big content
</div>
</div>