Why scroll bars appears? - html

I have the following simple code:
HTML:
<div>
<img src='http://i51.tinypic.com/4kz4g5.jpg' />
</div>
CSS:
div {
width: 260px;
height: 195px;
overflow: auto;
background: #333;
}
The dimensions of the image are width=260px, height=195px, which is exactly like the dimensions of the div.
My question is why the scroll bars appears in this situation ? (I expect them to appear only if image dimensions are greater of div's dimensions)

It's due to the fact that img is an inline tag, so it leaves space for text ascenders and descenders. Set the img to display: block and it'll work correctly.

It's because an empty text node is being inserted in your <div> and adding just enough space to require scrollbars. You can fix it with the following CSS:
div {
width: 260px;
height: 195px;
overflow: auto;
background: #333;
font-size: 0;
line-height: 0;
}
In action here.

Add display: block to the img.
See it.

Divs by default have padding values, you should set them to 0.
padding: 0px;

Related

space at the bottom of div

I've created the following demo to show my issue:
http://francisbaptiste.com/nov17/
Each div is 33.33% wide. Within the div is an image with 100% width. I want it to be a perfect grid of images, but the height of the div is always a little more than the height of the image.
Shouldn't the height of the div be set by the height of the image within it? So why is there that little bit of space at the bottom?
The gap is coming from the actual whitespace after the image tag. You can use this to fix it:
.card img {
display: block;
}
Fiddle
Or a more hacky solution:
.card {
font-size: 0;
}
Fiddle
I thinks the problem is the height of outer div, you cannot use auto since the browser may have some default action for the div and its inside content. Instead, I specify the percentage of height and solved the problem
.card {
width: 33.333%;
height: 50%;
overflow: hidden;
float: left;
background: black;
color: white;
}
Does that make sense to you?

CSS position:fixed element and margins

I'm trying to create a sticky searchbox so that it's always at the top of the page when you scroll.
However, I'd like it to take up 100% of the container, not the window.
Here's an HTML markup example:
<div class="container">
<div class="searchbox">
Search Box
</div>
</div>
and the CSS:
.container {
background-color: blue;
width: 300px;
padding: 20px;
height: 40px;
overflow-x: hidden;
}
.searchbox {
background-color: red;
position: fixed;
width: 100%;
}
Here's a fiddle with what's currently happening: http://jsfiddle.net/09ynr879/
I'd like it to be indented on the right side by the same amount it already is on the left. Any way to fix this? I'd like to be evenly in the center with the same margins on the left and on the right.
Thanks in advance.
Here's a screenshot of the actual site where we're having the problem:
http://s2.postimg.org/dlj47yqix/Screen_Shot_2014_10_06_at_11_08_24_AM.png
Notice how the searchbox starts at the right place but ends at the end of the page, not at the end of the container. We're using Bootstrap 3.2
Elements that are position: fixed have no relative parents. They are always going to be fixed relative to the page.
If it's no problem to you, remove position: fixed; from .searchbox and add it to .container
It's not possible, the fixed position get's out of the flow.
But an alternative solution:
.container {
background-color: blue;
width: 300px;
padding: 20px;
height: 40px;
position: fixed;
}
.searchbox {
background-color: red;
width: 100%;
}
http://jsfiddle.net/09ynr879/4/
Position fixed is always of the entire window. If you want to do it for just a container, you need JavaScript.
I think what you are looking for is either:
StickyMojo or jQuery Stickem
Bootstrap has a similar thing, called Affix.

when set background image in div at time i have to give static height of div otherwise it not take automatic height

When I set the background image at I have to give it a static size of div otherwise it will not display the background images. What is problem.....
I have this CSS:
.wrapper {
width: 1170px;
margin: 0 auto;
height: auto !important;
}
.main_div {
float: left;
width: 100%;
height: auto !important;
}
body {
font-family: Verdana, Geneva, sans-serif;
font-size: 14px;
width: 100%;
height: auto !important;
}
.header {
width: 100%;
background-image:url(file:///D|/HJ/ALL%20HTML%20TEMP/bootstrap/bootstrap/img/header_bg.jpg);
float:left;
}
The first comment is correct, I decided to create a little demo to explain this.
So if you take a look at the demo you can see we have the first div using background to place an image. This is fine and valid CSS but without a height and width how can the background be displayed?
Moving onto the second div, here we give the div with the background and height/width. Now the background has appeared. Because we have defined the height and width the background has room to display. A background cannot tell the element to be a certain size without you defining it.
And the last div, this has <img> inside of it. As this is an block element it has a height and width, so it will show the image as the parent has no height or width and therefore will allow the image to expand inside of it.
HTML:
With no height:
<div class="image"></div>With height:
<div class="imageWH"></div>With img:
<div class="imageIMG">
<img src="http://placehold.it/350x150" alt="" />
</div>
CSS:
.image {
background: url(http://placehold.it/350x150) no-repeat;
}
.imageWH {
background: url(http://placehold.it/350x150) no-repeat;
width: 350px;
height: 150px;
}
.imageIMG {
<!-- No need for anything -->
}
DEMO HERE
Why do you float the .main_div with width:100%? Floated elements get out of the flow which means they don't stretch their parent elements, so a background set on .main_div's parent won't show.
You should either remove the float or add some clearing technique to the header (also known as a css clearfix). See demonstration here: http://jsfiddle.net/YLEgY/1/

Aligning div to center and its content to the left

I'd like to have a div that is centered on the document. The div should take all the space it can to display the content and the content itself should be aligned to the left.
What I want to create is image gallery with rows and columns that are center and when you add a new thumb it will be aligned to the left.
Code:
<div id="out">
<div id="inside">
<img src="http://www.babybedding.com/fabric/solid-royal-blue-fabric.jpg"/>
<img src="http://www.babybedding.com/fabric/solid-royal-blue-fabric.jpg"/>
<img src="http://www.babybedding.com/fabric/solid-royal-blue-fabric.jpg"/>
<img src="http://www.babybedding.com/fabric/solid-royal-blue-fabric.jpg"/>
<img src="http://www.babybedding.com/fabric/solid-royal-blue-fabric.jpg"/>
</div>
</div>
and the CSS:
img {
height: 110px;
width: 110px;
margin: 5px;
}
#out {
width: 100%;
}
#inside {
display: inline-block;
margin-left: auto;
margin-right: auto;
text-align: left;
background: #e2e2f2;
}
Live version here: http://jsfiddle.net/anPF2/10/
As you will notice, on right side of "#inside" there is space that I want to remove, so this block will be displayed until the last square and all of it will be centered aligned.
EDIT:
Please view this photo: https://www.dropbox.com/s/qy6trnmdks73hy5/css.jpg
It explains better what I'm trying to get.
EDIT 2:
I've uloaded another photo to show how it should adjust on lower resolution screens. notice the margins on the left and right. This is what I'm trying to get (unsuccessfully so far :\ )
https://www.dropbox.com/s/22zp0otfnp3buke/css2.jpg
EDIT 3 / ANSWER
well, thank you everybody for trying solve my problem. I solved this problem using JS, with a function that listens to a screen resize event. The functions checks the size of the right margin and add padding to the left so all the content is centered. I didn't find a solution using CSS. If you have one, I'd very much like to know it.
Thanks eveyone!
Specify a width for #inside to center it. I used width: 120px. Fiddle: http://jsfiddle.net/anPF2/7/
Additionally, CSS should be used for the height and width of images, not attributes such as height="300". The fiddle reflects this change.
use of display:inline-block takes extra margins. To remove those set font-size:0px to the #out container. See the demo
This is what you want to achieve? demo
img {
height: 110px;
width: 110px;
margin: 5px;
display: inline-block;
}
#out {
width: 100%;
margin: 0 auto;
position: relative;
border: 1px solid red;
}
#inside {
position: relative;
background: #e2e2f2;
}
You shouldn't use Pixels when laying out your css, it makes it very rigid and causes possible problems for people with high resolution screens and low resolution screens. Its best to declare it as a % or em (% is still probably slightly better when working with widths, but em for height is perfect)
First, the "outer" div must be declared to be smaller than what it is inside. For instance if "outer" is inside body:
#outer{
width: 100%;
}
#inside{
width: 80%;
margin-left: auto;
margin-right: auto;
}
#inside img{
height: 110px;
width: 110px;
margin-left: 1%;
margin-right: 1%;
margin-top: 0.5em;
float: left;
}
Okay so, since "inside" is 80% of "outer"'s width, the margin-left:auto, margin-right: auto together make the "inside" div center within the "outer".
Setting the float property to left moves all the imgs of inside to always try to move left while it can.
EDIT: I fixed this after looking at your picture you provided.
I haven't tested this but I believe it should work, let me know if you are having more problems.
To make the boxes not go the entire width of the page, try setting the width less than 100% on #out and add margin:auto; to center it.
#out {
width: 90%;
margin:auto;
}
http://jsfiddle.net/anPF2/36/

Fix left and right floating images in HTML

Here's what I'd like to do: have a banner across the top of a website which stretches all across. On the left is a menu, and on the right a logo image; the menu floats left, the image floats right.
The problem is the resizing of the browser window. Because the image floats right, it correctly moves as the window gets smaller. However, at some point it begins to float into the menu. Here is a Fiddle that illustrates this effect with two floating images. Resize the browser window to see how the two images overlap.
Setting
body {
min-width: 800px;
}
I can now make sure that the scrollbar appears as the browser window reaches a certain minimum width. However, that doesn't hinder the right-floating image to keep moving as the browser window keeps getting smaller. I tried to change position: relative but that didn't work. I tried to use Javascript to fixate the images once the browser window reaches its min-width but that didn't seem to have an impact either. Using min-width on the DIV and making the images children of the DIV didn't work either.
My question is: how can I make sure that, starting at a certain window size, the right-floating image stays put instead of floating into the left-floating menu?
EDIT: Oh dear, I forgot to mention a rather important detail: the menu bar at the top needs to be sticky. That is why I used the position: fixed property for the DIV. The other page content is supposed to scroll under that menu and out of the window, see the modified fiddle here which is based on ntgCleaner's answer. This kind-of changes the whole thing, doesn't it! Sorry about that...
Thanks!
A couple things I changed:
I made your banner DIV a container instead of just a free floating div. Probably not necessary.
I gave that banner div a min-width:280px and made it overflow:hidden;
I made the images just float left and right, not positioned relatively or absolute (since it's in the div container now).
#banner {
left: 0px;
top: 0px;
width: 100%;
height: 60px;
background-color: lightblue;
z-index: 1;
opacity: 0.8;
overflow:hidden;
min-width:280px;
}
#left {
float:left;
margin:5px;
height:40px;
}
#right {
float:right;
margin:5px;
height:40px;
}
​
​
Here's the fiddle
EDITED FOR THE EDITED QUESTION:
You will just need to place all of your content under your header into a div, then give that div a top margin of the height of your fixed div. In this caes, it's 60px.
Add this to your HTML
<div id="content">
this <br>
is <br>
some <br>
test <br>
text <br>
</div>
then add this to your CSS
#content {
margin:60px 0px 0px 0px;
}​
Here's the new fiddle
Is this what you are after? http://jsfiddle.net/9wNEx/10/
You are not using the position: fixed correctly. Fixed means 'positioned relative to the viewport or browser window', and that is exactly what you are experiencing.
I removed the position: fixed from the images, and placed them inside the div. This should keep them always on top of the page, as they are inside the div that is still positioned fixed.
Also I tweaked some of the other styling to replicate your example. Note that i removed the fixed height of the head and replaced it by a padding bottom. This way the height will follow the content whenever the screen size becomes to small and the images are forced underneath each other.
The css looks like this now:
#banner {
left: 0px;
top: 0px;
width: 100%;
padding-bottom: 15px;
background-color: lightblue;
z-index: 1;
position: fixed;
opacity: 0.8;
}
#left {
float: left;
margin-left: 10px;
margin-top: 5px;
height: 40px;
}
#right {
float: right;
margin-right: 10px;
margin-top: 5px;
height: 40px;
}
I changed your HTML to put the <img> tags inside the banner, and added the min-width to the #banner since it has position: fixed. You'll still need to add min-width to the body or a container that wraps all other elements if you want there to be a min-width of the entire page.
http://jsfiddle.net/Wexcode/s8bQL/
<div id="banner">
<img id="left" src="http://www.google.com/images/srpr/logo3w.png" />
<img id="right" src="http://www.google.com/images/srpr/logo3w.png" />
</div>
#banner {
width: 100%;
min-width: 800px;
height: 60px;
background-color: lightblue;
z-index: 1;
position: fixed;
opacity: 0.8; }
#left {
float: left;
margin: 5px 0 0 10px;
height: 40px; }
#right {
float: right;
margin: 5px 10px 0 0;
height: 40px; }
​
When I look at your Fiddle I think your problem isn't the floats at all. position:fixed supersedes float. Those two elements aren't floating at all, they're in a fixed position (similar to an absolute position), which is why they overlap when they don't have enough room.
Take out float:left and float:right, the result will be the same. Also, top, left, bottom, and right don't work on non-positioned elements. So they are superfluous on your banner.
If you use floats, however, when there is not enough room the right image will wrap underneath the left. See http://codepen.io/morewry/pen/rjCGd. Assuming the heights on the images were set for jsfiddle testing only, all you need is:
.banner {
padding: 5px; /* don't repeat padding unnecessarily */
min-width: ??; /* to keep floats from wrapping, set one */
overflow: hidden; /* clearfix */
}
.right { float: right; } /* only need one float, don't over-complicate it with two */