I've created a toolbar using 14px x 14px images stored in a sprite. When displayed, the image has a very clear thin white edge on the top and right sides (you may have to zoom in to see it - it's no more than 1px). For the life of me, I don't have any idea how to get rid of it. I've tried moving the offset 1px in any direction - which clearly shows it's positioned correctly. Changing margin and padding don't fix it. Any ideas how to get rid of the white lines and what is causing it to render this way?
button.video-sprite-popout {
background: url("https://www.mseifert.com/img-common/video-controls-sprite.png") no-repeat -56px -14px scroll;
border: 0 !important;
height: 14px;
margin-left: 8px;
margin-right: 8px;
width: 14px;
}
.video-controls {
background-color: black;
bottom: 0;
left: 0;
position: absolute;
right: 0;
}
<div class='video-controls'>
<div><button class='video-sprite-popout'></div>
<div>
It is likely due to antialiasing, and it is very device/browser specific. The lines you are seeing are subpixels. Though I am not able to see this specific problem on my device, you can use either of these on your background image container. See which one fits better.
button.video-sprite-popout {
image-rendering: crisp-edges;
}
button.video-sprite-popout {
image-rendering: pixelated;
}
Related
My problem as stated in the title is about chrome's sub-pixel rendering. Sometimes you want the browser to determine an element's proper height or width so it takes up all the available space. And that's how floating point values appear. When the numbers after the decimal are high, it seems to get imprecise and make weird spacings. Changing the box-border property doesn't change the result. I made a codepen showing the problem, make sure to use a browser supporting sub-pixel rendering. As you zoom in you can see a space between the border and the pseudo-element.
* {
box-sizing: border-box;
}
div {
position: relative;
width: 100.98px;
height: 100px;
margin-left: 2px;
background-color: aqua;
border-radius: 10px;
border: solid 1px #000;
}
div:after {
position: absolute;
content:'';
width: 15px;
height: 100%;
right: 0;
background-color: black;
}
<div>
Turns out that rounding the width and height doesn't solve the problem at all; it's not about the float values (could be a factor). After some experimenting I found a trick of sorts. If you somehow manage to throw in a right: -1px or a left: -1px to the element's style it will no longer get weirdly spaced out (right: 0 or 1 doesn't work). I tested it with a resizable element. You can move it back into it's original position with transform: translateX(-1px) and there it is. No more subpixel gaps between elements. I made a codepen showcasing the solution: https://codepen.io/m4tex-the-sasster/pen/zYaMdwv
I'm working on a presentation with ioslides (Rmarkdown). Since the corporate design rules for our university state that the logo should be on the right side (so the two faces look into the document) I'ld be happy if someone can help me with adjusting the ioslide theme via css or in the pandoc template.
The image and grey box should come in from the right side. I wasn't able to do that. All I could do was making the grey so long that is reaches the right side (which moves the logo as well cause it is relatively placed to the grey boxes right end as it seems to me).
Here is some CSS code I already found and experimented with:
.gdbar img {
width: 150px !important;
height: 150px !important;
margin: 8px 8px;
}
.gdbar {
width: 90% !important; # with 250px instead of 90% it produces the image posted below
height: 170px !important;
}
This is the code produced after kniting: https://box.hu-berlin.de/f/d3d9e907fcef41a0bbf1/
I don't understand where the gdbar code resides in the first place. Would be happy about a hint here as well.
Edit: I have now this CSS setup and am almost done. Only the logo should be shifted a little bit to the left.
.gdbar img {
width: 150px !important;
height: 150px !important;
margin: 8px 8px;
}
.gdbar {
width: 250px !important;
height: 170px !important;
}
aside.gdbar {
left: initial;
right: 0;
border-top-left-radius: 10px;
border-top-right-radius: 0px;
border-bottom-right-radius: 0px;
border-bottom-left-radius: 10px;
background-position: right;
}
Best regards, Simon
Your element has left: -1px property what makes sure it's always on the left. If you set left to initial:
aside.gdbar {
left: initial;
right: 0;
}
or you remove this left setting then your element will move to the right.
I have an issue where you can clearly see the parent in the top right and top left corners of the child.
I have tried with using overflow: hidden; on parent as well as using border-radius on the child.
The issue is a bit hard to explain but you can clearly see the issue on the fiddle.
https://jsfiddle.net/2Lccaf0u/
edit: Here is an image showing the issue as well (using chrome)
An easy fix would be to make the outer element have a large radius than the inner for only the top portion
body {
background: #000;
}
.outer, .outer2 {
width: 200px;
height: 100px;
border-radius: 15px 15px 5px 5px;
background: #fff;
margin-bottom: 20px;
}
.inner, .inner2 {
background: #111;
width: 100%;
height: 50px;
border-radius: 5px;
}
Edit: It's happening because that is how the browser renders it. Not all browsers will produce the same result.
So Facebook displays a popover showing a profile-preview of the person on whose name you're hovering. If you have problems reproducing this, because the popover always appears on top of the name, just scroll down a little, leaving it not enough room to be shown above the name. Here's an example:
http://i.stack.imgur.com/bD1lk.jpg
(apparantly i need 10 posts for images.. sorry!)
There's this little triangle showing its part of the respective background image. What technique was used to achieve this? I haven't been able to come up with a solution, yet. Since it doesn't seem to be css3 masking and generating a single image for each picture would be kinda overkill...
I hope you can help me out here.. Either i'm just using the wrong search queries or the solution is deliberately hiding from me!
Thanks in advance!
Cheers
// edit:
I have played around a little more and found out, that the space around the triangle definitely is transparent as seen in the following picture:
http://i.stack.imgur.com/7jBIj.png
This means it's not the technique shown by kalley (which is a really nice start, tough!).
You could try something like this: http://jsfiddle.net/Z6fYj/
It requires that you know the background color that it's going to be on top of, but you can see the effect.
.img {
background: url(...) no-repeat;
background-size: 500px auto;
/* -10px relates to the top position of :before */
background-position: 0 -10px;
width: 500px;
height: 372px;
position: relative;
margin-top: 20px;
}
.img:before {
background: url(...) no-repeat;
background-size: 500px auto;
/* -40px is the opposite of the left property */
background-position: -40px 0;
position: absolute;
width: 0;
top: -10px;
left: 40px;
content: '';
border-bottom: 10px solid transparent;
border-right: 10px solid #fff;
border-left: 10px solid #fff;
}
I'm not sure if that's exactly how facebook is doing it (can't seem to trigger the mouseover manually...), but this can probably give you a start.
My private webpage's main content is not displaying strangely within Firefox. The header and footer bar both display and the main text is placed adjacent to them towards the right. Occasionally, the footer also moves above the main text. I'm guessing this is all one issue involving the positioning of DIVs that I'm somehow missing. [This has been solved]
The height of two DIVs that are equally as tall when displayed in Chrome is also different. This issue also occurs in Safari but in a different way. There is a 1 px gap between the logo and the navbar that isn't present when viewed in Chrome or Firefox. Can anyone think of a way to reset all of the browser defaults to prevent similar things from happening in the future?
The website is currently not online yet and I'm debugging it for final release. (I don't really want to release this in the current condition as it will frustrate anyone who doesn't use a webkit browser.)
Also, as a side note, anyone know how to fix the CSS errors I'm getting in Internet Explorer 9? The gradient in the nav bar is gone, some areas have missing background color, and all picture links have annoying boxes around them.
EDIT: I saw in an online CSS gradient generator what I need to do to make the gradients work in IE9. The background issue apparently stems from the same source.
Also, is anyone in Opera experiencing issues with the latest debug version at http://jsbin.com/ipixay/1? (Credit for this one goes to Sunyatasattva.)
The link to the fiddle (where the code is posted at) is: http://jsfiddle.net/aaQSD/7/ Please forgive me for the amount of CSS that's still there, but I can't tell which causes the Internet Explorer 9 problems.
My best guess is that the Firefox problem lies somewhere in this section of CSS:
body {
margin: 0;
padding: 0;
text-align: center;
font-family: Times;
background: #efefef url(pics/background.png) repeat top center;
}
#container {
overflow:auto;
width: 95%;
min-height: 100%;
min-width: 946px;
margin: 0 auto 10px auto;
}
#content-wrapper {
width: 100%;
float: right;
text-align: left;
margin: 10px 0 0 0;
}
#content-inner {
padding: 0 15px 0 15px;
}
.center-slide {
font: normal 62.5%/1.5 Times;
letter-spacing: 0;
width: 900px;
height: 485px;
position: relative;
padding: 20px 0 0 0;
margin: 0 auto 0 auto;
background-color: #FFFFFF;
border-radius: 8px;
}
.boxes {
margin: 0 auto 0 auto;
width: 900px;
}
.left-box {
float: left;
background-color: #FFFFFF;
border-radius: 8px;
margin: 10px 5px 0 0;
padding: 20px;
width: 500px;
position: relative;
}
.logo {
width: 26%;
text-align: center;
float: left;
font-family: Times;
font-size: 65px;
font-weight: bold;
color: #FFFFFF;
padding: 10px 0 0 0;
background-image: -moz-linear-gradient(0% 22px 90deg, #0B3474, #517ABA);
background-image: -webkit-gradient(linear, 0% 0%, 0% 70%, from(#517ABA), to(#0B3474));
}
header {
width: 100%;
min-width: 863px;
background-color: #000047;
float: left;
padding: 10px;
color: #FFFFFF;
text-align: left;
font-size: 20px;
overflow: hidden;
margin: 0 0 10px 0;
}
nav {
background-color: #6a6a6a;
font: 16px Times;
min-width: 700px;
float: right;
width: 74%;
}
footer {
font-family: Times;
text-align: center;
background-color: #000047;
color: #FFFFFF;
text-align: center;
padding: 10px 0;
width: 100%;
min-width: 863px;
}
Here is the list of things that have been fixed:
Unwanted boxes/borders around picture
Firefox display issue
Glitchy footer
EDIT: I'm currently working on making a fiddle with the minimal code to replicate the issue as suggested in the comments. I hope you can forgive me for my noobish mistake. Thanks, everyone who have responded so far!
EDIT 2: The fiddle is out! I've removed the pandora's box of code that used to be below.
The header and footer are displayed adjacent to the main container
Is there a reason why they are floated? Removing the float: left rule from the header, makes the container stack below it. If they need to be floated for some reason I am not seeing, perhaps you should consider adding a clear?
Logo height different from navbar element heights
This piece baffled me a bit: I think the culprit is browser default line-height property, which, on Chrome, is coincidentally making your elements align.
Your nav elements have a set line-height of 61, plus a vertical padding of 12 on both sides, adding up to 85px. Your logo has no defined line-height and a font-size of 65px plus a padding-top of 10px. In Firefox this is 10px short.
To fix this, just set the line-height to your logo element as well.
Here is a working JSBin of your code:
Working example
Internet explorer problems:
Missing gradient
Missing background
Annoying border
I don't have IE9 at hand right now, so I might look into it later if you need it, but here are my guesses.
As for the missing gradient, your CSS specifies only webkit and mozilla vendor prefixes. You might want to take a look at the -ms– prefix as well, and check which rules really need it and which don't.
I am skipping the missing background part because it's quite vague and I am not testing on IE right now.
As for the border around linked images, you could perhaps add this rule to your CSS:
a img {
border: 0;
outline: 0;
}
EDIT:
Safari annoying one pixel gap
As for the Safari annoying one pixel gap, it apparently comes from the fact that Safari doesn't calculate well your float: left + width: 26% plus float: right + width: 74%. Adding a .1% to the first element width fixes the problem, but it is not the most elegant solution.
The best solution for your problem at hand is to just float both your elements left. You can see an updated fiddle working in Safari:
Working example
I have edited your fiddle for it to work. I essentially just added float: left; to your #container. You can look at my edits for further details. http://jsfiddle.net/aaQSD/8/