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What does “for” attribute do in HTML tag?
...t seems important to mention that it's very relevant for accessibility and screen readers, why actively use it.
– coyotte508
Jun 6 '16 at 2:15
1
...
pdftk compression option
...ifferently):
gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen -dNOPAUSE -dBATCH -dQUIET -sOutputFile=output.pdf input.pdf
Edit: I just discovered another option (for lossless compression), which avoids the nasty gs command. qpdf is a neat tool that converts PDFs (compression/...
How to fix: android.app.RemoteServiceException: Bad notification posted from package *: Couldn't cre
...escribed in Providing Density-Specific Icon Sets and Supporting
Multiple Screens, you should create separate icons for all generalized
screen densities, including low-, medium-, high-, and
extra-high-density screens. This ensures that your icons will display
properly across the range of devi...
CentOS 6.4下Squid代理服务器的安装与配置 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...s 开机启动
# chkconfig iptables on
6.4 修改客户端IP地址
将默认网关设置为squid 服务器的内网ip地址。
6.5 在浏览器中，取消代理设置
6.6 测试
透明代理测试成功。
七、反向代理服务
为Internet用户访问企业Web站点提供缓存...
Hook up Raspberry Pi via Ethernet to laptop without router? [closed]
...
No router + no screen + regular Ethernet cable + RPI 2 + Raspbian Lite 2018-11-13 + Ubuntu 18.10
First we must enable the SSH server on the Pi, which is disabled by default for security.
If you already have a shell on the Pi through a non...
Responsive font size in CSS
...the 320 pixels width for wherever your design starts breaking:
@media only screen and (max-width: 320px) {
body {
font-size: 2em;
}
}
Viewport percentage lengths
You can also use viewport percentage lengths such as vw, vh, vmin and vmax. The official W3C document for this states:
T...
GridView VS GridLayout in Android Apps
... ListAdapter, the only data loaded in memory will be the one displayed on screen.
GridViews, much like ListViews reuse and recycle their views for better performance.
Whereas a GridLayout is a layout that places its children in a rectangular grid.
It was introduced in API level 14, and was recent...
What is the difference between visibility:hidden and display:none?
... would guess they are about the same. As soon as something changes on the screen the whole screen will re-render (at least it used to), and so it doesn't really matter. You're still forcing a screen repaint. This could very browser by browser though, and in truth there are probably better ways to ...
Programmatically set the initial view controller using Storyboards
...nary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:UIScreen.mainScreen.bounds];
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
UIViewController *viewController = // determine the initial view controller here and instantiate ...
How to use HTML to print header and footer on every printed page of a document?
...ple:
<div class="divFooter">UNCLASSIFIED</div>
CSS:
@media screen {
div.divFooter {
display: none;
}
}
@media print {
div.divFooter {
position: fixed;
bottom: 0;
}
}
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