I have built a website that uses vh for measurement, but came accross the problem that some browsers are not supporting vh, how can i write my css that tries vh but if it does not work it changes to another form of measurement?
Thanks
Here is an example of a css that I would need to change
img{
max-height: 90vh;
cursor: pointer;
display: block;
z-index: 10;
}
CSS requires that browsers ignore rules that are not recognised.
max-height: 100px;
max-height: 90vh;
If the browser supports vh then the second rule will be recognised and the first rule will overridden by it.
If it does not, then the second rule will be ignored and the first rule will apply.
Related
On our website we have the following phenomenon: When rendering the website on a desktop browser (Firefox, IE, Chrome), all fonts, in particular those embedded in <td> tags, are rendered in the same size.
However, when rendering the website on a mobile device, the font size of the texts within the <td> tags shrinks. See below. We tried to set
html {
-webkit-text-size-adjust: none;
}
but this only helps with the problem on the mobile safari and opera browser. Using the tips from this website, we added
#media (max-width: 960px) {
td {
font-size: 20pt;
}
}
to the css, but this now miraculously only works for one of our phones held tilted sideways, not in portrait.
How do we prevent the font-size within the table cells to be scaled down?
What Olli and JStephen said, but I also had to add text-size-adjust: none;
html,body {
text-size-adjust: none;
-webkit-text-size-adjust: none;
-moz-text-size-adjust: none;
-ms-text-size-adjust: none;
}
You were most likely looking for this:
Include the following <meta> tag in the document's <head> section:
<meta name="viewport" content="width=device-width, initial-scale=1">
It helped me with the same problem.
Maybe if you also add body to the css like this:
html,body { -webkit-text-size-adjust:none; }
Resource: iPhone/iPod - prevent font-size-changing
I know this is an old post, but I came across it and found the answer that worked for me is just an extension to Olli's. There are more css styles you have to add to support other browsers:
-webkit-text-size-adjust: none;
-moz-text-size-adjust: none;
-ms-text-size-adjust: none;
I had originally put everything in table cells which worked on my nexus, but my samsung phone was still randomly deciding which text to scale and which to keep the set size. I set 13px to everything on the page and it was the only font size styling I did. This was the only way I was able to fix it on all the devices I have.
First of all, font-size should be set relative to a default-value that is defined by the html selector, in case of repsonsive formatting.
For example:
html {
font-size: 100%;
}
h1 {
font-size: 2em;
}
td {
font-size: 1.25em;
}
The reason for this is that different platforms use different default values for 100%. E.g. desktops use 16px but mobile browsers often use 24px.
If you define the font-size of one of your elements to an absolute value, it will not scale with the rest of the items that have been assigned no value or a relative value; thus resulting in this behaviour.
The best solution to this problem: use relative font-sizes with em, rem or even % as the unit, istead of the absolute font-sizes with pt or px as the unit.
Edit for more background on the different default font-size on different platforms:
Because each platform has its own use-case, its own average screen size, average reader-to-screen distance, average DPI-value for its screen and (most important of all) a different viewport width, font-sizes aren't equally legible on each of those platforms if set to a fixed size. That's why the browsers define the default size to something different, as to optimise the experience for the user on that specific platform.
Sure, you could ignore this and keep setting all your font-sizes to something fixed, but that's going against the flow and breaking the user experience. Instead, try to make peace with this fact and be sure that it all scales properly.
Edit2: To warn you about the usage of em vs rem: using em will inherit the parent value and multiply it by the value of the font-size you define in your current element, while using rem will always be based on the value that is set in the root element instead of the parent element. So the following code will result in the following absolute values:
HTML:
<html>
<...>
<body>
<div>
<p>..</p>
</div>
</body>
</html>
CSS:
html {
font-size: 100%; /* we agree on 16px for this example */
}
div {
font-size: 1.25em; /* add a quarter of 16, so 20px is the actual value */
}
p {
font-size: 0.8em; /* subtract a fifth of the value of the parent element: 20 * 0.8 = 16 again */
font-size: 0.8rem; /* subtract a fifth of the value of the root element: 16 * 0.8 = 13.8 (will be rounded by browser to 14) pixels */
}
I search for a long and I can't find an answer :/
In Chrome (Internet Explorer, Konqueror, and many others) the h1 margin at bottom is added to .blue. However, Firefox respect the css rules properly.
Any suggestion?
HTML
<div class="red"><div class="blue"><h1>Hello World!</h1></div></div>
CSS
.red{
background: red;
/* All this contain margins */
float:left;
/* padding-top:1px; */
/* display: inline-block */
/* overflow: hidden */
}
.blue{
background: blue;
min-height: 60px;
}
h1{
margin: 10px 0 20px;
background: green;
}
Gecko-based: [This one is the correct, I guess]
Webkit-based, KHTML-based and Trident shell:
CODEPEN
http://codepen.io/marquex/pen/fzsIk
The margin issue you are having is related with the min-height rule in the .blue div. Replace it for a height rule if it is possible to get the same result in Chrome and Firefox.
I have no idea why that is happening when using min-height though. Maybe is some kind of Chrome's bug.
Define your fonts, this is the problem, every browser have different settings for default fonts, headings (h1...h6) respectively. So the actual height of the text in h1 will be different and this is the cause for different margins at bottom/top.
As you can see, Gecko-based browser uses a sort of Garamond-styled font, all other use by default Times New Roman, of course if user was predefined the fonts for pages, sometimes everything may look the same across all browsers, example:
h1{
margin: 10px 0 20px;
background: green;
font-family: "Your-favorite-font", Times, sans-serif;
font-size: 2em;
}
RESOLVING
After a long search I reported the issue on chromium repo. And they accept it as a bug. So, if anyone wants to know the final of this history can follow the fix process here.
Thanks anyone who try to help us, but let me add that I did not believe that Stackoverflow can be able to not see an error of this magnitude. I am a little less stackoverflowita.
For my input, which can either have classname="half" or "half.not-placeholder-value", Firebug shows both inputs to have a set, fixed width of 25em.
input.half, input.half.not-placeholder-value {
max-width: 25em;
}
Yet, according to Developer Tools, IE8 doesn't seem to use this particular max-width attribute. I say "doesn't seem to use" since Firefox's behavior differs with IE8 with respect to this attribute.
But the MDN docs say that IE7 supports max-width. Am I missing something?
This is not really an IE8 issue since IE8 does support the max-width attribute but only when given a defined width first.
input.half, input.half.not-placeholder-value {
width: 100%;
max-width: 25em;
}
Use IE8 css with width? First part targets IE, second part undoes it for IE9+.
input.half, input.half.not-placeholder-value {
max-width: 25em;
width:25em\9; /* IE 8 */
}
:root input.half, input.half.not-placeholder-value {
width:inherit\9; /* IE 9+ */
}
I've used the following code for background image of body tag.
background-image: url(images/taling.gif);
background-repeat:repeat-x;
background-color: #2E2E2E;
margin-left: 0px;
margin-top: 0px;
margin-right: 0px;
margin-bottom: 0px;
it works in IE,Opera and chrome but doesn't work in FireFox.
I've tried also :
background-image: url("images/taling.gif");
and
background-image: url('images/taling.gif');
but it doesnt work on FireFox
your document body is height=0, and width=0, if you try to give it some height or width the image should be displayed
There is no problem with your CSS. What the problem is most likely the result of is either you are not assigning a width and height to the body tag, you are naming your image incorrectly, using the incorrect extension for your image, or the path to your image is incorrect, but there is also a possibility that you need to add a width and height.
If you use Firefox, you can test what is going on by using Firebug. You right click, and choose inspect element. Once done, in the right column of Firebug, you can see your declaration for background-image. If it says image not loaded or cannot be found, then one of the three things I pointed out above is the problem.
I know you said that the image does show up in other browsers, just not in Firefox. So, consider some modifications to the rest of your CSS. You may not be specifying a browser reset.
Just FYI, you can condense your CSS by doing the following:
background-image: url(images/taling.gif);
background-repeat:repeat-x;
background-color: #2E2E2E;
to
background: #2e2e2e url(images/taling.gif) repeat-x;
As for the body tag, you may want to add these properties and values:
margin: 0;
padding: 0;
width: 100%;
height: 100%;
Google "CSS browser reset"
One example of a browser reset is the following:
html, body {
width: 100%;
height: 100%;
}
body {
margin: 0;
padding: 0;
}
The above is the most simple browser reset you can have. It does not take into account ul,ol,li,h1,h2,h3,h4,h5,h6,li,p,a,img,blockquote, etc.
Also, look into using a clearfix.
I could ramble on and on as to why you may be having this problem.
I hope that helps.
Try:
background: url('yourimage.ext') repeat-x;
It works for me.
Edit: to match what you're doing, it should in fact be:
background: #2E2E2E url('images/taling.gif') repeat-x;
Ok so heres the deal. I have a page I'm creating in html and css. I've got a div whose background needs to be transparent.
However when I use opacity: .6; Everything in the div goes see through.
Is there any way to fix this so it works in safari, IE, and firefox?
No, there's no real way to fix this problem (though you can in CSS3). There are two possible approaches:
1) Use a transparent png background rather than doing it with CSS (with hacks for IE6 which doesn't allow transparent pngs)
2) Use two separate divs, and use absolute positioning to position one over the top of the other. This requires knowing certain dimensions, so may not always apply, but may work in your situation.
.outer {
position: relative
}
.background {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: #000; /* Or whatever */
opacity: 0.6;
-moz-opacity: 0.6;
filter: alpha(opacity=60);
}
<div class="outer">
<div class="background"></div>
Content
</div>
Note that sometimes the height: 100% rule for .background doesn't work in IE 6, in which case you should try applying hasLayout to first .outer, and if that fails to .background as well (you can add hasLayout with the CSS rule zoom: 1 without side-effect). If neither of those works, you'll likely need an expression value for IE 6. If you need further help leave a comment.
As smerriman said, it's much simpler in browsers which support CSS3 (more specifically, rgba or hsla color values). It would be as simple as background-color: rgba(0, 0, 0, 0.6).
Just use transparent image as a background for that element. When you use opacity in css for a given element, everything in that element and including that element receives that styling. Look here:
http://jsfiddle.net/zV4BR/
you should use both
opacity in css and
filter:alpha(opacity=60);
for ie and stuff
use this method
How to give cross browser transparency to element's background only?
use Rgba instead opacity. see example here: http://jsfiddle.net/ypaTH/
you will have to set background on inner elements also.
Edit: to make rgab code for IE use this http://kimili.com/journal/rgba-hsla-css-generator-for-internet-explorer/
it should be
opacity:0.6
beside that opacity works differently depending which web browser you use