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Retina displays, high-res background images
...non-iOS Devices (f.e.: Google Nexus 7 2012):
.box {
background: url( 'img/box-bg.png' ) no-repeat top left;
width: 200px;
height: 200px;
}
@media only screen and ( -webkit-min-device-pixel-ratio: 1.3 ),
only screen and ( min--moz-device-pixel-ratio: 1.3 ),
only screen a...
Django MEDIA_URL and MEDIA_ROOT
...
PS. You can then use this in your templates: <img src="{{ MEDIA_URL }}images/myimage.png"/>
– Micah Carrick
Apr 1 '11 at 19:45
...
App Inventor 2 TaifunImage 拓展，图像高级处理功能，剪裁，压缩，翻转等 ...
...lumn; align-items: center; } .feedback-pop:hover, .feedback-pop .feedback-img:hover { color: #3773f5 } .feedback-pop .feedback-img { display: inline-block; width: 24px; height: 24px; margin-bottom: 4px; background: url(/static/images/feedback.svg) 50% / 100% auto no-repeat; } 文档反馈 ...
CSS filter: make color image with transparency white
...red;
}
p {
float: left;
max-width: 50%;
text-align: center;
}
img {
display: block;
max-width: 100%;
}
.filter {
-webkit-filter: brightness(0) invert(1);
filter: brightness(0) invert(1);
}
<p>
Original:
<img src="http://i.stack.imgur.com/jO8jP.gif" />
...
How to hide image broken Icon using only CSS/HTML?
... for either hiding the image, or replacing the source with a backup.
<img src="Error.src" onerror="this.style.display='none'"/>
or
<img src="Error.src" onerror="this.src='fallback-img.jpg'"/>
Update
You can apply this logic to multiple images at once by doing something like this:...
Should image size be defined in the img tag height/width attributes or in CSS? [duplicate]
Is it better coding practice to define an images size in the img tag's width and height attributes?
7 Answers
...
Stretch and scale a CSS image in the background - with CSS only
...
Using the code I mentioned...
HTML
<div id="background">
<img src="img.jpg" class="stretch" alt="" />
</div>
CSS
#background {
width: 100%;
height: 100%;
position: fixed;
left: 0px;
top: 0px;
z-index: -1; /* Ensure div tag stays behind conten...
Hide text using css
... /* sends the text off-screen */
background-image: url(/the_img.png); /* shows image */
height: 100px; /* be sure to set height & width */
width: 600px;
white-space: nowrap; /* because only the first line is indented */
}
h1 a {
...
How to change the opacity (alpha, transparency) of an element in a canvas element after it has been
...e for using globalAlpha:
ctx.save();
ctx.globalAlpha = 0.4;
ctx.drawImage(img, x, y);
ctx.restore();
If you need img to be loaded:
var img = new Image();
img.onload = function() {
ctx.save();
ctx.globalAlpha = 0.4;
ctx.drawImage(img, x, y);
ctx.restore()
};
img.src = "http://..."...
Setting UIButton image results in blue button in iOS 7
...undImage:[UIImage...]];
Add an UIImageView to your button.
UIImageView * img = [[UIImageView alloc] initWithImage:[UIImage...]];
[button addSubView:img];
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