I came across this issue in safari where using mix-blend-mode: color; doesn't work correctly. I tested other blend modes which work fine. Strangely despite this seeming like very common issue, I didn't find any color blend mode specific discussion. Any ideas on how to fix this? I tried adding #overlay inside #image div but getting same results.
#image{
display: block;
position: fixed;
background: url(https://i.picsum.photos/id/1070/800/600.jpg?hmac=TQrM01Rpkjic5HhbuMrBGEdrR3mjDSyubaTTRmkMqVU);
background-size: cover;
width: 600px;
height: 400px;
top: 0;
left: 0;
}
#overlay{
display: block;
position: fixed;
background: linear-gradient(120deg, rgba(178,151,4,0.75) 0%, rgba(43,48,59,1) 100%);
width: 600px;
height: 400px;
top: 0;
left: 0;
mix-blend-mode: color;
}
<div id="image"></div>
<div id="overlay"></div>
Related
On some devices screens (laptop), I noticed on Chrome and Microsoft Edge browsers, there is line above my backgroungd svg image, on my top menu.
It looks fine if i resize the window, for example it looks good on mobile size screen. If i change the backround height seems to be solved but it will occur on other screen sizes.
#site-nav::after {
content: '';
display: block;
position: relative;
width: 100%;
height: 99px;
top: 0;
left: 0;
z-index: -1;
background-position-y: 2px;
background-size: 100% 75px;
background-repeat: no-repeat;
background-color: transparent;
background-image: url(data:image/svg+xml;base64,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);
transform: scale(-1,-1.4);
}
I add a printscreen of the error here
On firefox, it seems to be fine.
I wonder if the top line is not a part of the svg image. Unfortunatelly I am not a svg expert.
Thank you for help.
Try removing background-position-y from your css. So that the new CSS looks like this.
#site-nav::after {
content: '';
display: block;
position: relative;
width: 100%;
height: 99px;
top: 0;
left: 0;
z-index: -1;
background-size: 100% 75px;
background-repeat: no-repeat;
background-color: transparent;
background-image: url(data:image/svg+xml;base64,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);
transform: scale(-1,-1.4);
}
When setting a background gradient to background-attachment: fixed it is suddenly cropped to 50% of the page width. It seems related to the position left: 50%. I wonder if this is a bug or if I'm using the CSS wrong here:
.container {
position: relative;
height: 80px;
margin: 10px 0
}
.container:before {
content: '';
position: absolute;
top: 0;
bottom: 0;
width: 100vw;
background: #f0f0f0;
background-image: repeating-linear-gradient(315deg,rgba(0,0,0,.03),rgba(0,0,0,.03) 10px,rgba(0,0,0,.06) 0,rgba(0,0,0,.06) 20px);
left: 50%;
transform: translate(-50%);
}
.container.fixed-bg:before {
background-attachment: fixed; /* <-- This line causes the problem. Why? */
}
<div class="container">...</div>
<div class="container fixed-bg">...</div>
I know that I can bypass the issue by removing the styles left: 50%; and transform: ... but that's not a practical solution in my case. The container has an unknown left margin and the pattern needs to reach from edge to edge.
Does that mean my CSS is wrong? What CSS would display the fixed background pattern in full width?
Update
I notice that there is a different behavior across browsers:
The bug seems to be related to transform. Use margin instead
.container {
position: relative;
height: 80px;
margin: 10px 0
}
.container:before{
content: '';
position: absolute;
top: 0;
bottom: 0;
width: 100vw;
background: #f0f0f0;
background-image: repeating-linear-gradient(315deg,rgba(0,0,0,.03),rgba(0,0,0,.03) 10px,rgba(0,0,0,.06) 0,rgba(0,0,0,.06) 20px);
left: 50%;
margin-left:-50vw;
}
.container.fixed-bg:before{
background-attachment: fixed;
}
<div class="container">...</div>
<div class="container fixed-bg">...</div>
body {
height: 150vh;
}
#hero {
position: relative;
border: none;
height: 100vh;
}
#hero .hero-image {
background-image: url(https://images.unsplash.com/photo-1518791841217-8f162f1e1131);
background-attachment: fixed;
background-position: center;
background-repeat: no-repeat;
background-size: cover;
position: absolute;
top: 0;
left: 0;
bottom: 0;
right: 0;
height: 95%;
}
#hero .hero-image:after {
content: "";
position: absolute;
top: 0;
left: 0;
bottom: 0;
right: 0;
background: rgba(0,0,0,0.2);
}
#hero .skewhero-mask {
height: 100%;
position: absolute;
top: 0;
left: 10vw;
width: 45vw;
overflow: hidden;
transform: skew(24deg) translateX(0vh) translateY(0%);
}
#hero .skewhero-parallax {
transform: translateX(0vh);
width: 200%;
position: absolute;
top: 0;
left: 0;
bottom: 0;
right: 0;
}
#hero .skewhero-image {
background-image: url(https://images.unsplash.com/photo-1518791841217-8f162f1e1131);
height: 100%;
background-size: 110% auto;
background-attachment: fixed;
transform-origin: right top;
transform: skew(-24deg);
}
<section id="hero">
<div class="hero-image">
</div>
<div class="skewhero-mask">
<div class="skewhero-parallax">
<div class="skewhero-image"></div>
</div>
</div>
</section>
I am really stuck with this one. I'm designing a parallax effect where I shift the background-position property of a fixed background using jQuery. The jQuery isn't at fault here, so I won't include it here to reduce the complexity of the question.
In Chrome, I get the desired effect. In Firefox or Edge, it's a nightmare. I have not tested it on Opera as of yet. When removing the background-attachment: fixed from the class .skewhero-image in those browsers, I notice there's no difference whatsoever. The property doesn't do anything, because when I remove the same property in Chrome, I get the same undesirable result as in the other browsers.
How can I change my code as to achieve the exact same effect as I have now in Chrome, but in all other desktop browsers as well? Mobile browsers excluded.
Basically, the image of the cat must not move, only the container surrounding it. In Chrome, this works as intended. In Firefox or Edge, the cat moves with the container, it isn't fixed to the viewport.
Edit: I have found out that leaving out all transform properties, from itself and all parents, fixes the image to the viewport. Anything to remedy this?
I am not sure what version of Firefox you are using but I just created codepen and it is working fine
<https://codepen.io/anon/pen/ZgpgZP>
If you are still have problem, please describe in details
$(function() {
"use strict";
var $skp = $('.skewhero-parallax');
var $skm = $('.skewhero-mask');
var $hi = $('.hero-image');
function calcParallax() {
var $scroll = $(document).scrollTop();
$skm.css({'transform':'skew(24deg) translateX(-' + (0.445 * $scroll) + 'px)'});
$skp.css({'transform':'translateY(' + $scroll + 'px)'});
$hi.css({'transform':'translateY(' + $scroll + 'px)'});
}
$(window).on('scroll', function () {
calcParallax();
});
$(window).resize(function() {
calcParallax();
});
});
body {
height: 150vh;
}
#hero {
position: relative;
border: none;
height: 100vh;
}
#hero .hero-container {
height: 95%;
overflow: hidden;
}
#hero .hero-container:after {
content: "";
position: absolute;
background: rgba(0,0,0,0.2);
height: 95%;
top: 0;
left: 0;
right: 0;
}
#hero .hero-image {
height: 100%;
background-image: url(https://images.unsplash.com/photo-1518791841217-8f162f1e1131);
background-repeat: no-repeat;
background-size: cover;
will-change: transform;
}
#hero .skewhero-mask {
height: 100%;
position: absolute;
top: 0;
left: 10vh;
width: 45vw;
overflow: hidden;
transform: skew(24deg) translateX(0vh);
will-change: transform;
}
#hero .skewhero-parallax {
width: 200%;
position: absolute;
top: 0;
left: 0;
bottom: 0;
right: 0;
transform: translateY(0px);
will-change: transform;
}
#hero .skewhero-image {
background-image: url(https://images.unsplash.com/photo-1518791841217-8f162f1e1131);
background-repeat: no-repeat;
height: 100%;
background-size: 110% auto;
background-position: 0px -35px;
transform-origin: right top;
transform: skew(-24deg);
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<section id="hero">
<div class="hero-container">
<div class="hero-image"></div>
</div>
<div class="skewhero-mask">
<div class="skewhero-parallax">
<div class="skewhero-image"></div>
</div>
</div>
</section>
I have found an alternative solution to fix my problem. Also, it seems browsers are able to deal with this solution a lot better. background-attachment:fixed is causing serious performance issues. This is because the browsers have to repaint the entire image when scrolled. Source #1 and Source #2. I have tested this myself and can confirm there's heavy lag when scrolling. I have started using the transform: translate() property, which is a lot more optimized for this as browsers don't have to repaint the entire image.
As I want to animate my parallax effect with jQuery, I've mimicked the fixed background effect in my code. I have added a code snippet of the desired effect, which works in Chrome, Firefox and Edge.
As the title suggests, the blur filter does not work in Edge when the transform property is set. The fiddle below demonstrates this.
https://jsfiddle.net/wkjvwgyy/1/
#content-background {
display: block;
position: fixed;
top: 0;
left: 0;
height: 100%;
width: 100%;
background: url("https://i.imgur.com/qfGEt3o.jpg") no-repeat top center fixed;
background-size: cover;
filter: blur(5px) brightness(60%);
}
<div id="content-background" style="transform: scale(1.03)"></div>
On removing the transform property, the blur works fine. It also works correctly in Chrome and Firefox. Is this a bug in Edge?
Both transforms and filters should be supported on Edge 15, which I'm running.
If I remember correctly, this is a bug in Edge.
This should work:
#content-background {
display: block;
position: fixed;
top: 0;
left: 0;
height: 100%;
width: 100%;
background: url("https://i.imgur.com/qfGEt3o.jpg") no-repeat top center fixed;
background-size: cover;
transform: scale(1.03)
}
#content-background::after {
content: '';
position: absolute;
top: 0;
left: 0;
height: 100%;
width: 100%;
background: url("https://i.imgur.com/qfGEt3o.jpg") no-repeat top center fixed;
background-size: cover;
filter: blur(5px) brightness(60%);
}
The filter property is not supported in Internet Explorer, Edge 12, or Safari 5.1 and earlier.
https://www.w3schools.com/cssref/tryit.asp?filename=trycss3_filter_blur
In other words, it only works in Edge 13 or later.
Lets assume I have a div with a Gradient applied as a background-property.
I now want to overlay a black PNG (of smaller size) and set the PNG to have a background-blend-mode of overlay. Unfortunately I have no idea on how to achieve this.
I know I can have a working background-blend-mode when I render the Gradient into the CSS of the Div with the PNG image like:
background: url(../img/plus.png), linear-gradient(to bottom, #24cae4 0%, #1f81e3 100%);
background-blend-mode: overlay;
This however results in the Gradient being as small as the actual PNG, which is not a desired effect, like this:
What I want to achieve is this with pure CSS (if possible):
Here a Codepen to illustrate what I'm trying to do: http://codepen.io/anon/pen/zxOXGP
Notice the Black Icon. I wanna overlay this.
Try using mix-blend-mode instead of background-blend-mode and switch to simple text for the plus-sign or a webfont for more custom figures.
Example Codepen of the below:
.placeholder {
position: relative;
width: 400px;
height: 300px;
background-image: -moz-linear-gradient(#ff0000, #0000ff);
background-image: -webkit-linear-gradient(#ff0000, #0000ff);
background-image: linear-gradient(#ff0000, #0000ff);
}
.center {
position: absolute;
top: 25%;
width: 100%;
font-size: 120px;
}
.center span {
display: block;
text-align: center;
color: red;
mix-blend-mode: screen;
}
<div class="placeholder">
<div class="center"><span>+</span>
</div>
</div>
The gradient sandwich
Ingredients
The :before forms the bottom z-layer with z-index: 1, it is full opacity
The .content div forms the filling, central z-layer, with z-index: 2. It needs position: relative to take its z-index.
The :after forms the top z-layer with z-index: 3 and completes our lunch item. It is half opacity.
This is the tasty result:
Full Example
I have removed all but the standard CSS3 gradient for simplicity. View in a supporting browser.
.gradient {
position: relative;
height: 200px;
padding: 20px;
}
.gradient:before,
.gradient:after {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
content: '';
display: block;
background-size: 100%;
background-image: linear-gradient(to bottom, #24cae4 0%, #1f81e3 100%);
opacity: 0.5;
}
.gradient:before {
opacity: 1;
z-index: 1;
}
.gradient:after {
z-index: 3;
}
.overlayed_image {
position: relative;
width: 64px;
height: 64px;
display: block;
margin: auto;
background-size: contain;
background-repeat: no-repeat;
background-position: 50% 50%;
background-image: url(http://cdn.flaticon.com/png/256/9029.png);
}
.content {
position: relative;
z-index: 2;
}
<div class="gradient">
<div class="content">
You can see me!
<div class="overlayed_image"></div>
</div>
</div>