As per my knowledge there is no css property to make background image transparent,
I'm trying again and again but still I'm far from solution,
Here is my approach:
body {
background-image: url("PPI01.jpg");
background-attachment: fixed;
background-position: bottom;
filter: opacity(opacity: 30%);
z-index: -1;
background-repeat: no-repeat;
}
I looked for other so questions and found something like, but problem remains.
Put your background to body::after
<!DOCTYPE html>
<html>
<head>
<title></title>
<style type="text/css">
body {
width: 1200px;
height: 1200px;
display: block;
position: relative;
margin: 0 auto;
z-index: 0;
}
body::after {
background: url(http://kingofwallpapers.com/background-image-laptop/background-image-laptop-018.jpg);
content: "";
opacity: 0.9;
position: absolute;
top: 0;
bottom: 0;
right: 0;
left: 0;
z-index: -1;
}
div {
font-size: 36px;
color: white;
}
</style>
</head>
<body>
<div>
The text will not affected by the body
</div>
</body>
</html>
Alternative approach is to use an absolute position image as the background and set the image with the following property,
img {
opacity: 0.5;
filter: alpha(opacity=50); /* For IE8 and earlier */
}
Using image source URL inside stylesheet make it hard to change the source dynamically.
Usually, the background image is pre-processed, you also might consider making it a transparent PNG file first before upload it into your static server, so you can make the image transparent using image process application like PS, Sketch.
I sharing you my answer, because I think it's a bit better than the accepted solution, mainly because with my solution you can set image URL in HTML, as I need. You can also easyly make different CSS class for different opacity levels :)
CSS:
body.light-bg {
background-position-x: 50% !important;
background-position-y: 50% !important;
background-size: cover !important;
}
body.light-bg::before {
background: white;
content: "";
height: 100%;
opacity: 0.35;
position: absolute;
width: 100%;
z-index: -1;
}
HTML:
<body style="background: url(image.png)" class="light-bg"></body>
You can use rgba background property with white color and opacity.
background; rgba(255, 255, 255, 0.3) url(IMAGE_PATH); /* Add other attributes as required */
You should use opacity property to set the value. The allowed values are from 0 to 1.
body {
background-image: url("PPI01.jpg");
background-attachment: fixed;
background-position: bottom;
opacity: 0.3;
z-index: -1;
background-repeat: no-repeat;
}
Check the complete documentation on W3C.
Related
I need to add a very thin stripes pattern over an image in html. I can't really add it to the image itself for multiple reasons (images are uploaded in a CMS, must be used in other places without the stripes, and i also want the pattern to remain unscaled, whereas the images do scale...).
So i made a transparent PNG with the pattern, put it over the image with a pseudo element and use background-repeat to loop it over the entire image (see snippet).
The problem i have is that the image is blinking/flashing when i scroll the page down. Tested on Firefox & Chrome with the same result. I tried different other options like using a very big stripe image to avoid background-repeat, or using a non transparent image with mix-blend-mode:multiply, but the result is always the same.
I also tried a pure css solution with repeating linear background but the rendering is not very good because the pattern is too thin.
The only way i can have a clean rendering is by inlaying the pattern in the original image, no blinking then, but this is not really an option for the reasons mentionned above.
Any ideas ? Thanks :-)
#container {
position: relative;
}
#container:after {
content: '';
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
background: url(https://indelebil.fr/stripes.png) repeat;
}
img {
display: block;
max-width: 100%;
}
<div id="container">
<img src="https://indelebil.fr/sample.jpg" />
</div>
We can do this with linear-gradient
No need to use strips.png
body {
height: 300vh;
}
#container {
position: relative;
overflow: hidden;
}
#container:after {
content: '';
position: absolute;
top: -200vh;
left: 0;
right: 0;
bottom: 0;
width: 200vw;
height: 400vh;
background-size: 3px 44px;
background-repeat: repeat;
background-image: linear-gradient(to left, transparent -5px, #000000a3 8px, transparent 26px, transparent);
transform: rotate(-45deg) scale(1.5);
}
img {
display: block;
max-width: 100%;
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Stack Overflow</title>
<link rel="stylesheet" href="./styles.css">
</head>
<body>
<div id="container">
<img src="https://indelebil.fr/sample.jpg" />
</div>
</body>
</html>
I finally found a workaround, the flashing effect tends to disappear by lowering the pattern opacity, it is still present but it becomes kinda acceptable under 0.6% alpha.
By the way if anyone has a better way keeping 100% opacity i would be happy to hear about it !
#container {
position: relative;
}
#container:after {
content: '';
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
background: url(https://indelebil.fr/stripes.png) repeat;
opacity:.5;
}
img {
display: block;
max-width: 100%;
}
<div id="container">
<img src="https://indelebil.fr/sample.jpg" />
</div>
I currently have this code:
body {
margin: 0;
font-family: BlinkMacSystemFont,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
background: #151626;
width: 100vw;
height: 100vh;
}
.bg {
margin: 0;
overflow: hidden;
position: fixed;
height: 100vh;
top: 0;
bottom: 0;
}
.bg figure {
background: url(http://mortenhjort.dk/food/assets/img/login/bg.jpg) no-repeat center center;
background-size: cover;
height: 100vh;
width: 100vw;
transform: scale(1.05);
filter: blur(10px);
opacity: 0.5;
}
<div class="bg"><figure></figure></div>
The image is used as a sitewide background-image for a new platform and the reason for not just putting it into the body as a background-image is that I want to be able to use the CSS3 Filter (blur) on it + opacity, which for both I plan to animate in certain sections of the site.
However if I do this I have to use absolute positioning for all other content on the site which is kinda messy. Is there a better way to insert this image as a background without using absolute positioning?
I strongly prefer a CSS3-only solution.
Add the image using pseudo element, like this, and you can have other content floating on top.
If you get issues with the z-index: -1;, which keep the image to stay in the background, you can remove it and give immediate children of the body position: relative instead.
body {
margin: 0;
font-family: BlinkMacSystemFont,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
background: #151626;
height: 100vh;
}
body::before {
content: '';
position: fixed;
height: 100%;
width: 100%;
background: url(http://mortenhjort.dk/food/assets/img/login/bg.jpg) no-repeat center center;
background-size: cover;
transform: scale(1.05);
filter: blur(10px);
opacity: 0.5;
z-index: -1;
}
div {
color: white;
font-size: 30px;
}
<div>Hey there....</div>
I have a div with a background color and a background image. The div calls this class:
.cakebg {
background-color: #F8BBD0;
background-image: url(img/cake.png);
background-size: 25%;
background-position: right top;
background-repeat: no-repeat;
}
I am trying to make only the image somewhat transparent. I tried this:
.cakebg {
background-color: #F8BBD0;
background-image: url(img/cake.png);
opacity: 0.6;
background-size: 25%;
background-position: right top;
background-repeat: no-repeat;
}
But that makes the entire div transparent.
So I tried this:
.cakebg {
background-color: #F8BBD0;
background-image: url(img/cake.png) opacity(0.6);
background-size: 25%;
background-position: right top;
background-repeat: no-repeat;
}
But that makes the image disappear entirely. Can this be done?
What you're trying to do on that single element isn't possible, but there's plenty of ways that could do the same thing with very little extra effort. Probably the best way would be to either add an additional child element to the .cakebg element with the same dimensions that only has the background image, with opacity. Such as:
.cakebg .child-element {
height: 100%;
width: 100%;
background-image: url(img/cake.png);
opacity: 0.6;
}
If you're trying to keep your markup clean, you can even add this as a pseudoelement. Such as the following:
.cakebg:after {
content: "";
height: 100%;
width: 100%;
background-image: url(img/cake.png);
opacity: 0.6;
}
If neither of those methods work, a last resort could be editing the image to have that opacity baked in from your favorite editing software. Hopefully some of these methods might help!
There is no CSS property background-opacity, but you can fake it by inserting a pseudo element with regular opacity the exact size of the element behind it.
.cakebg {
background-color: #F8BBD0;
background-size: 25%;
position: relative;
}
.cakebg::after {
content: "";
background: url(img/cake.png);
opacity: 0.5;
top: 0;
left: 0;
bottom: 0;
right: 0;
position: absolute;
z-index: -1;
}
OR you can simply use an trasparent png image as background
There is no CSS property to make just the background transparent, but you can fake it by inserting a pseudo element with the same size of element behind it and change the opacity of this.
.cakebg {
background-color: #F8BBD0;
background-size: 25%;
background-position: right top;
background-repeat: no-repeat;
}
.cakebg::after {
content: "";
background-image: url(img/cake.png);
opacity: 0.5;
top: 0;
left: 0;
bottom: 0;
right: 0;
position: absolute;
z-index: -1;
}
Please note that that question was already asked quite often, read here for example.
I have a background image for whole page and another for content div. What I want is the background image of content div should be semi transparent so that some of the background image(for the whole page) below it should also be visible.
I also tried reducing the opacity of my .png background file using image editor but it didn't show my the background below , instead the image just got lightened.
Use a pseudo-element
body {
background-image: url(http://lorempixel.com/image_output/nature-q-c-1600-1600-10.jpg);
background-repeat: no-repeat;
background-size: cover;
}
div {
width: 600px;
height: 500px;
position: relative;
}
div::before {
content: '';
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-image: url(http://lorempixel.com/image_output/city-q-c-600-500-7.jpg);
opacity: 0.5;
z-index: -1;
}
<div>
<h1>Heading Text</h1>
</div>
To make a div transparent you can use:
.thediv{
background-color: transparent
}
Edit: Semi transparent with:
.thediv{
background:rgba(255,255,255,0.4);
}
HTML
<body>
<div></div>
</body>
CSS
body {
background-image: url(https://static.pexels.com/photos/24419/pexels-photo-24419-large.jpg);
background-repeat: no-repeat;
}
div {
width: 600px;
height: 500px;
background-image: url(https://static.pexels.com/photos/940/sky-sunset-sand-night-large.jpg);
opacity: 0.5;
}
JSfiddle: https://jsfiddle.net/0jw6c79L/
i'm trying to use opacity on a background-image but if i use it it will effect the text aswell.
.content_wrapper{
width:320px;
height:374px;
color:black;
background-image: url('../images/beuningse-boys-midden.png');
background-size:130px;
background-repeat: no-repeat;
background-position-x: 95px;
background-position-y: 155px;
}
You cannot change the opacity of a background-image with CSS. However, there are ways of achieving the same result.
Method 1
This method uses the :after pseudo class which is absolutely positioned inside its parent. The background image is set on this pseudo element along with the opacity giving the impression that the background opacity is set on the background itself.
HTML
<div>
Text on top, no big deal, no big deal. Just a little text and stuff. That's all.
</div>
CSS
div {
width:320px;
height:374px;
display: block;
position: relative;
border: solid 1px #f00;
}
div::after {
content: "";
background-image: url('http://placehold.it/800x600');
background-size: cover;
background-repeat: no-repeat;
opacity: 0.5;
top: 0;
left: 0;
bottom: 0;
right: 0;
position: absolute;
z-index: -1;
}
Method 2
If you need backwards compatibility, you will need an extra element in your markup to achieve the same result:
HTML
<div class="container">
<div class="background"></div>
Text on top, no big deal, no big deal. Just a little text and stuff. That's all.
</div>
CSS
.container {
width:320px;
height:374px;
display: block;
position: relative;
border: solid 1px #f00;
}
.container .background {
content: "";
background-image: url('http://placehold.it/800x600');
background-size: cover;
background-repeat: no-repeat;
opacity: 0.5;
top: 0;
left: 0;
bottom: 0;
right: 0;
position: absolute;
z-index: -1;
}
Here is a great article with a CSS3 method of achieving the same result:
http://css-tricks.com/snippets/css/transparent-background-images/
Give to the text a class or an id and give it a color without opacity.
p {
color: rgb(120,120,120); // use here what color you want
}