I am using the carousel component from the new Bootstrap 3 RC2. However, I noticed that in practice the caption is often not readable because my pictures very a lot in color. The previous Bootstrap 2.3 used a black gradient for captions but that seems to have been removed.
What would be a way to style my caption with CSS to make them readable against arbitrary images? I have tried to play with shadow and background-color, but that just gets incredibly ugly.
Here some example code: http://bit.ly/1eX8Tz9
In order to get the content displayed on the gray semi-transparent background
Just Add the following code to your css
.carousel-caption{
background: rgba(0,0,0,0.5);
}
See the Demo Here
Related
I'm working to adjust some components so that they all function and look good in high-contrast mode. Edge seems to be adding a black background under all text that IE11 does not add. I can't seem to find a way to target this background in CSS, or any other way to normalize the behavior between the two browsers.
For example, let's say I have the following:
<div class="SelectedText">
Text!
</div>
And let's say I assigned background-color: cyan; and color: black; to the .SelectedText div.
In this scenario, IE11 renders it as expected with the div and text having the assigned colors. However, in Edge the div background and text are given the right colors, but the text itself gets a black background drawn behind it, making it unreadable black on black text.
The following image illustrates this problem occurring in the context of menu items with with basically the same markup described above.
Is there any way to disable or target this extra background that Edge adds?
Found the answer to this eventually. Setting -ms-high-contrast-adjust: none; on the parent can disable the backgrounds that Edge puts behind text.
I'm using dir-pagination found here.
This utilizes bootstrap styling. I can change the rest of the styles for the pagination controls, but I can't force the hover effect to have no color.
I can ensure that it has a color, by specifying one, but if I try to override it in a way that will force it to not have a color such as transparent, it defaults to the white color. My specificity is exactly the same as in the bootstrap css... but even if I remove the style in the bootstrap css is still defaults to white.
Been researching this for hours.
EDIT: See the following plunkr for an example of my problem.
http://plnkr.co/edit/2OvXNgX81NspuO9g356J?p=preview
twilliams Hi there.
Is this what you are trying to do?
Add this to your css.
.pagination li a:hover {
background-color: rgba(255,128,128,.5);
}
This will change the pagination background transparent color when each one is hovered.
Have a look at this Plunker.
I just realized my mistake and I feel foolish. I was making the assumption I had another element below with the color I wanted, and I was simply changing the color of an overlay element.
Turns out I didn't have that other element below, and so it really was just pulling the white of the monitor. I was a little clouded by the complexity of my current project that I didn't see it like I did with the simplicity of the plunkr example I made.
I'm working with the Shape5.com Corporate Response Joomla template and been asked to make a change to the color of the four icons for social media in the upper right-hand corner. The demo of this template can be found here:
http://www.shape5.com/demo/corporate_response/
Their CSS for each icon looks like this from the template.css file. I'm just including the first icon to keep this brief, which is for RSS:
#s5_rss {
height:23px;
width:22px;
background:url(../images/rss.png) no-repeat top left;
cursor:pointer;
margin-left:8px;
float:right;
}
#s5_rss:hover {
background:url(../images/rss.png) no-repeat bottom left;
}
The rss.png is here:
http://www.shape5.com/demo/corporate_response/templates/corporate_response/images/rss.png
I've been asked to use CSS to change the active/hover color from what it is now to red. I'm not sure if this can be done with CSS or not. Can it? Or does this require a new .png file created with the image by the designer to be the desired red color?
I'd also like to understand why this rss.png file has two images of the icon inside of it at different shades and how does the CSS toggle between them to know which to use for hover? Is this a special .png file that allows this, perhaps in a different format than most .png files? Thanks!
The image is known as a sprite image: a single image file consisting of multiple sprites which you apply as a single background image, and position according to the constraints set by the width and height properties on an element. It's just a regular PNG image and is not intrinsically different from other PNG images.
As for actually changing the color of the image to red, that is not something you can do with CSS alone depending on what you mean by "changing the color" — the safest bet is to modify the image to add a new sprite with the desired color. Since it's just a regular PNG image it's a simple matter of extending the canvas another 23 pixels down, rendering the new sprite in the extra space that's created, and modifying your CSS so it looks like this:
#s5_rss:hover {
background:url(../images/rss.png) no-repeat center left;
}
#s5_rss:active {
background:url(../images/rss.png) no-repeat bottom left;
}
You can also replace the background:url(../images/rss.png) no-repeat portion with background-position: in your :hover and :active rules as you're really only modifying the background position when using a sprite in CSS:
#s5_rss:hover {
background-position:center left;
}
#s5_rss:active {
background-position:bottom left;
}
Experimental CSS filters are up around the horizon, but without good cross-browser support, you're basically out of luck on that front. If you can handle reduced browser support, go take a look at this overview of CSS filters.
Your current code shows only half the rss.png which conveniently is the exact height of just one of the sub-images within it. When you declare the background: you're telling it to stick the image from the top and hide the bottom half.
On hover, you're instructing it to draw just the bottom half of the image (the hovered state part). To make it a different color, you pretty much need to edit the file (short of having the background image partially transparent and showing a red background through it).
Overall, there's nothing magical going on, just well-documented magic that we all share and use every day.
Currently there is no way to change the colours within an image using css and likely there will either never be or a long way off. There is the potential to do a color overlay but this would not help unless the image you were dealing with was a block colour.
In order to change the color you will need a separate image to reference on the hover styling rule for that element.
The alternative way to do this is to use a sprite, where all the images are loaded as one image and css just focuses on a portion of it depending on the state ie hover, active etc. This is what you mentioned earlier. Have a look at the following links for information on using a sprite, but put simply if you have a 40*40px social icon. You would create a 40*80 image and then in css say use the top half for normal and the bottom for hover. This actually saves time when loading your page and you should always try and use sprites where ever possible, remember the faster the page the better for the user.
http://css-tricks.com/css-sprites/ (good guide on sprites)
http://spriteme.org/ (very handy and will do the work for you - recommended)
OK, sorry...this is kind of a basic CSS question but it's driving me crazy. I'm self-taught so I'm sure I am just missing something simple.
Site: http://notes.benadelt.com
The logo image sprite is just a home link...I'm trying to remove that background color that you can see is ruining the transparency of the image:
<a class="ben-logo" href="/"></a>
You can see that CSS gives any links in that section a light background-color, which is being applied to the image sprite as well. I'm trying to remove that background color from my image, but not from the body links, and cannot figure it out. Using dev tools I can only impact the style using:
header .words a { background: none; }
But that obviously removes the background from ALL links, so it also removes my image background in the sprite.
Figured there would be something I could add after the background URL to do this, such as:
background: url(http://www.benadelt.com/notes/wp-content/uploads/2013/04/Ben-Logo-Sprite.svg) none;
When you hover, it looks like I want it to look normally without that darn background-color.
Any help would be appreciated!
Ben
header .words a.ben-logo { background-color: transparent; }
The above code will target only the logo link. By setting the background colour to transparent, you leave the image itself (and all the other background properties!) intact.
Edit: One thing - I believe you already have transparent set on that background image by virtue of not specifying a colour (transparent is the default). What is probably happening in your case is that the a.ben-logo declaration comes before the .words a declaration in your stylesheet, so it's being overridden. The reason the above code should fix it is because the extra class names add more specificity. Here is Andy Clarke's specificity cheat sheet for you to peruse: http://www.stuffandnonsense.co.uk/archives/images/specificitywars-05v2.jpg
I have a menu with 5 items of varying text length - home, about us, contact us, etc
In the mockup in photoshop, I created a background image for the hover state but if it's longer than the text it gets cut off and it doesn't work in IE. The image is 105 X 28. Here's a link to example You'll see when you hover the background image gets cutoff. How can I fix this? Thanks
add a css rule to #main-nav li a{ min-width: 105px;}
I would recommend having a fixed size though ie 105px.. and then text-align:center for each of the menu items so they all line up nicely .. but that is up to you
The buttons aren't wide enough for the background image.
Give each li tag either the style width: 105px; height: 28px; or make a CSS class with that styling and apply the class to each one.
You can try using a rectangular background image and using the CSS border-radius attribute to round the corners.
If that doesn't get you the look you want or isn't compatible enough, the usual way is to make the image in three parts. The two ends plus a middle section that can be stretched or tiled.
A third approach is to use a rectangular background image again, and then creates "masks" which are images of the corner cutouts (which are same color as background) that are overlayed on the main background image to make the corners appear rounded. I haven't seen this approach as much since the border-radius attributes became widely supported.
Here is a pure CSS solution...
http://jsfiddle.net/wdm954/tAaCF/1/
Basically using CSS3 border-radius and box-shadow to replace the need for an image. This is going to be a bit less stylish in older browsers. For simple styling like this it shouldn't be a deal breaker if those who are already suffering through a lack of CSS3 across the Web don't get to see some pretty rounded corners. The older browsers will still show a blue background on hover.