IE workaround for semi-transparent - css

What should be the workaround in order to show in pre-IE9 the following CSS:
background-color: hsla(182, 44%,76%,.5);


for transparent element you have more way.
for IE ->
filter: alpha(opacity=40);
filter: progid:DXImageTransform.Microsoft.Alpha(opacity=40);
/* above line works in IE6, IE7, and IE8 */
-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(opacity=40)";
/* above line is IE8 only */
and for all browsers:
opacity: .7;
But they are transparent all element , If you need transparent only any color for example background you must use 2 functions rgba or hsla and example for them:
support : (Firefox 3+, Opera 10.1+, Chrome 2+, Safari 3.1+)
#rgba {
background: rgba(98, 135, 167, .4);
}
but IE9 only support it in all version of IE and all browser support css3
#hsla {
background: hsla(207, 38%, 47%, .4);
}


You can use one of Microsoft's proprietary "filters" to do this:
background:transparent;
filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#7FA7DBDD,endColorstr=#7FA7DBDD);
zoom: 1;
The hex values are in ARGB order. So convert your color to a RGB Hex value, (#A7DBDD in this case) and put the opacity in front (0.5 is 7F in hex) like this: #7FA7DBDD
This would be best done, of course inside an IE specific stylesheet, perhaps using conditional comments.


Use a separate dom element with solid color and set the opacity ... it will work just fine :)
.bg {
background: #000;
filter: alpha(opacity=50);
opacity: 0.5;
}

Related

inline hack css lower to IE9 ? (or all non CSS3 capable browsers)

I need a hack to tarjet internet explorer lower to 9, or to be more specific; i need a inline CSS hack to tarjet non CSS3 capable browsers
_prop:val -> ie6
*prop:val -> ie6 & ie7
????????? -> ie8 & ie7 & ie8
I am using gradients and images for those browsers, but ie8 does not support it... so i want to load the alternate image only if necessary
(please avoid answers suggesting to use external stylesheet using conditional coments or using javascript. I know that this code would be invalid, but its just for one little thing. Plus i am curious to know if its posible :) )

You don't need a hack, since no current browser supports all of CSS3.
Instead, simply specify fallback properties for older browsers, like this:
#selector {
background: url("gradient.png");
background: gradient(...);
}

I am using gradients in IE8 in a project. It does work !
<style>
#gradient {
color: #fff;
height: 100px;
padding: 10px;
/* For WebKit (Safari, Google Chrome etc) */
background: -webkit-gradient(linear, left top, left bottom, from(#00f), to(#fff));
/* For Mozilla/Gecko (Firefox etc) */
background: -moz-linear-gradient(top, #00f, #fff);
/* For Internet Explorer 5.5 - 7 */
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=#FF0000FF, endColorstr=#FFFFFFFF);
/* For Internet Explorer 8 */
-ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr=#FF0000FF, endColorstr=#FFFFFFFF)";
}
</style>
for box shadow there seems to be a workaround like this:
.shadow {
zoom: 1;
filter: progid:DXImageTransform.Microsoft.Shadow(color='#999999', Direction=0, Strength=3)
progid:DXImageTransform.Microsoft.Shadow(color='#999999', Direction=45, Strength=2)
progid:DXImageTransform.Microsoft.Shadow(color='#999999', Direction=90, Strength=3)
progid:DXImageTransform.Microsoft.Shadow(color='#999999', Direction=135, Strength=2)
progid:DXImageTransform.Microsoft.Shadow(color='#999999', Direction=180, Strength=3)
progid:DXImageTransform.Microsoft.Shadow(color='#999999', Direction=225, Strength=2)
progid:DXImageTransform.Microsoft.Shadow(color='#999999', Direction=260, Strength=3)
progid:DXImageTransform.Microsoft.Shadow(color='#999999', Direction=305, Strength=2);
-moz-box-shadow: 0 0 5px #222; /*Mozilla-basierte Browser (z.B. Firefox)*/
-webkit-box-shadow: 0 0 5px #222; /*WebKit-basierte Browser (z.B. Safari/Chrome)*/
box-shadow: 0 0 5px #222; /*CSS3 Standard*/
}
for border-radius there is no support until ie9, as far as I know. I'm using several jQuery plugins to achieve border-radius in IE. hope this code helped you !

You need to use this:
prop: val\9
Putting \9 directly at the end of any value will target just IE8 and below

background gradients in IE7 with CSS

I am using the following bit of CSS to create a linear background gradient. It seems to work just fine in IE8/9, FF, Safari and chrome but not in IE7. IE7 shows a solid (green) background. Here is my code
.menu_body a {
display:block;
color:#006699;
background: #008800;
/* Mozilla: */
background: -moz-linear-gradient(top, #0b71a4, #025f8e);
/* Chrome, Safari:*/
background: -webkit-gradient(linear,
left top, left bottom, from(#0b71a4), to(#025f8e));
/* MSIE */
filter: progid:DXImageTransform.Microsoft.Gradient(
StartColorStr='#0b71a4', EndColorStr='#025f8e', GradientType=0);
padding: 1px 18px;
}

In IE<=7, filters won't work unless element has layout.
zoom: 1;
Be aware that it can break other things, so old good background-image might be safe and reliable solution.
Also please note that your CSS lacks gradient properties for Opera, IE10 and updated syntax for Webkit.

The correct syntax is:
filter: progid:DXImageTransform.Microsoft.gradient
(startColorstr=#550000FF, endColorstr=#55FFFF00)
This is supported by IE4>
See the MSDN source here.

I'm unsure if the parameters of this transform are case sensitive - but seeing as most other CSS is, you could try:
startColorstr='#0b71a4', endColorstr='#025f8e'
Notice the lower-case starting character, and lower-case str suffix.

CSS transparancy question

I have got ot the following css to make my table cell's background transparent
background-color:black;
filter: alpha(opacity = 20);
the problem is, this transparency also makes the text transparent. How can i make it only target the background. or how can i over ride it when in my <span>. I've tired setting the occupicy to 100 in my <span>s for text but it doesnt override it. the text still comes out transparent
EDIT: I'm using IE6

You want to use rgba color which lets you set the alpha transparency of the color:
background-color: rgba(0,0,0,0.2); /* == black 20% opacity */
Read about rgba here: http://css-tricks.com/rgba-browser-support/
You can use filter for IE, code for all browsers would be:
background-color: #000000;
background-color: rgba(0, 0, 0, 0.2); /* FF3+, Saf3+, Opera 10.10+, Chrome, IE9 */
filter: progid:DXImageTransform.Microsoft.gradient(startColorStr='#33000000',EndColorStr='#33000000'); /* IE6–IE9 */

CSS how to target background and make it transparent

I am using IE6 and the only occupicy thing i can thing that works is opacity: 0.5; filter: alpha(opacity = 50);
background-color:black;
opacity: 0.5;
filter: alpha(opacity = 50);
this works but it makes the text transparent as well how can I make only the background colour transparent

it's simple only you have do is to give
background: rgba(0,0,0,0.5)
& for IE use this filter
{background: transparent;-ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr=#7F000000,endColorstr=#7F000000)"; /* IE8 */ filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=#7F000000,endColorstr=#7F000000); /* IE6 & 7 */ zoom: 1;}
for more about color transparency in IE you have to read about hsla color:
http://greenevillage.net/csspages/hsla.aspx

You need to have a look at this trick here:
http://randaclay.com/tips-tools/how-to-make-your-backgrounds-transparent-using-css/

CSS background opacity with rgba not working in IE 8

I am using this CSS for background opacity of a <div>:
background: rgba(255, 255, 255, 0.3);
It’s working fine in Firefox, but not in IE 8. How do I make it work?

To simulate RGBA and HSLA background in IE, you can use a gradient filter, with the same start and end color (alpha channel is the first pair in the value of HEX)
background: rgba(255, 255, 255, 0.3); /* browsers */
filter: progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr='#4cffffff', endColorstr='#4cffffff'); /* IE */

Create a png which is larger than 1x1 pixel (thanks thirtydot), and which matches the transparency of your background.
EDIT : to fall back for IE6+ support, you can specify bkgd chunk for the png, this is a color which will replace the true alpha transparency if it is not supported. You can fix it with gimp eg.

I believe this is the best because on this page has a tool to help you generate alpha-transparent background:
"Cross browser alpha transparent background CSS (rgba)" (*now linked to archive.org)
#div {
background:rgb(255,0,0);
background: transparent\9;
background:rgba(255,0,0,0.3);
filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#4cFF0000,endColorstr=#4cFF0000);
zoom: 1;
}

the transparent png image will not work in IE 6-, alternatives are:
with CSS:
.transparent {
/* works for IE 5+. */
filter:alpha(opacity=30);
/* works for IE 8. */
-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=30)";
/* works for old school versions of the Mozilla browsers like Netscape Navigator. */
-moz-opacity:0.3;
/* This is for old versions of Safari (1.x) with KHTML rendering engine */
-khtml-opacity: 0.3;
/* This is the "most important" one because it's the current standard in CSS. This will work in most versions of Firefox, Safari, and Opera. */
opacity: 0.3;
}
or just do it with jQuery:
// a crossbrowser solution
$(document).ready(function(){
$(".transparent").css('opacity','.3');
});

Though late, I had to use that today and found a very useful php script here that will allow you to dynamically create a png file, much like the way rgba works.
background: url(rgba.php?r=255&g=100&b=0&a=50) repeat;
background: rgba(255,100,0,0.5);
The script can be downloaded here: http://lea.verou.me/wp-content/uploads/2009/02/rgba.zip
I know it may not be the perfect solution for everybody, but it's worth considering in some cases, since it saves a lot of time and works flawlessly. Hope that helps somebody!

There are mostly all browser support RGBa code in CSS but only IE8 and below level does not support RGBa css code. For This here is solution. For The solution you must follow this code and it’s better to go with it’s sequence otherwise you will not get perfect output as you wish. This code is used by me and it’s mostly perfect. make comment if it’s perfect.
.class
{
/* Web browsers that does not support RGBa */
background: rgb(0, 0, 0);
/* IE9/FF/chrome/safari supported */
background: rgba(0, 0, 0, 0.6);
/* IE 8 suppoerted */
/* Here some time problem for Hover than you can use background color/image */
-ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr=#88000000, endColorstr=#88000000)";
/* Below IE7 supported */
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr=#88000000, endColorstr=#88000000);
}

You use css to change the opacity. To cope with IE you'd need something like:
.opaque {
opacity : 0.3;
-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=30)";
filter: alpha(opacity=30);
}
But the only problem with this is that it means anything inside the container will also be 0.3 opacity. Thus you'll have to change your HTML to have another container, not inside the transparent one, that holds your content.
Otherwise the png technique, would work. Except you'd need a fix for IE6, which in itself could cause problems.

I'm late to the party, but for anyone else who finds this - this article is very useful:
http://kilianvalkhof.com/2010/css-xhtml/how-to-use-rgba-in-ie/
It uses the gradient filter to display solid but transparent colour.

To use rgba background in IE there is a fallback.
We have to use filter property. that uses ARGB
background:none;
-ms-filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#33ffffff,endColorstr=#33ffffff);
filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#33ffffff,endColorstr=#33ffffff);
zoom: 1;
this is fallback for rgba(255, 255, 255, 0.2)
Change #33ffffff according to yours.
How to calculate ARGB for RGBA

this worked for me to solve the problem in IE8:
-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=1)";
Cheers

This solution really works, try it. Tested in IE8
.dash-overlay{
-ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr=#4C000000,endColorstr=#4C000000)";
}

It is very simply you have to give first you have to give backgound as rgb because Internet Explorer 8 will support rgb instead rgba and then u have to give opacity like filter:alpha(opacity=50);
background:rgb(0,0,0);
filter:alpha(opacity=50);

This a transparency solution for most browsers including IE x
.transparent {
/* Required for IE 5, 6, 7 */
/* ...or something to trigger hasLayout, like zoom: 1; */
width: 100%;
/* Theoretically for IE 8 & 9 (more valid) */
/* ...but not required as filter works too */
/* should come BEFORE filter */
-ms-filter:"progid:DXImageTransform.Microsoft.Alpha(Opacity=50)";
/* This works in IE 8 & 9 too */
/* ... but also 5, 6, 7 */
filter: alpha(opacity=50);
/* Older than Firefox 0.9 */
-moz-opacity:0.5;
/* Safari 1.x (pre WebKit!) */
-khtml-opacity: 0.5;
/* Modern!
/* Firefox 0.9+, Safari 2?, Chrome any?
/* Opera 9+, IE 9+ */
opacity: 0.5;
}

The best solution I found so far is the one proposed by David J Marland in his blog, to support opacity in old browsers (IE 6+):
.alpha30{
background:rgb(255,0,0); /* Fallback for web browsers that don't support RGBa nor filter */
background: transparent\9; /* backslash 9 hack to prevent IE 8 from falling into the fallback */
background:rgba(255,0,0,0.3); /* RGBa declaration for browsers that support it */
filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#4cFF0000,endColorstr=#4cFF0000); /* needed for IE 6-8 */
zoom: 1; /* needed for IE 6-8 */
}
/*
* CSS3 selector (not supported by IE 6 to IE 8),
* to avoid IE more recent versions to apply opacity twice
* (once with rgba and once with filter)
*/
.alpha30:nth-child(n) {
filter: none;
}

After searching a lot, I found the following solution which is working in my cases:
.opacity_30{
background:rgb(255,255,255); /* Fallback for web browsers that don't support neither RGBa nor filter */
background: transparent\9; /* Backslash 9 hack to prevent IE 8 from falling into the fallback */
background:rgba(255,255,255,0.3); /* RGBa declaration for modern browsers */
-ms-filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#4CFFFFFF,endColorstr=#4CFFFFFF); /* IE 8 suppoerted; Sometimes Hover issues may occur, then we can use transparent repeating background image :( */
filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#4CFFFFFF,endColorstr=#4CFFFFFF); /* needed for IE 6-7 */
zoom: 1; /* Hack needed for IE 6-8 */
}
/* To avoid IE more recent versions to apply opacity twice (once with rgba and once with filter), we need the following CSS3 selector hack (not supported by IE 6-8) */
.opacity_30:nth-child(n) {
filter: none;
}
*Important: To calculate ARGB(for IEs) from RGBA, we can use online tools:
https://kilianvalkhof.com/2010/css-xhtml/how-to-use-rgba-in-ie/
http://web.archive.org/web/20131207234608/http://kilianvalkhof.com/2010/css-xhtml/how-to-use-rgba-in-ie/

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