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Why is vertical-align: middle not working on my span or div?
...issues). Just to point out that these parameters have to be added to a CSS block specific to the elements to be centred/middled, eg: #element span {height:100%;display:-webkit-box;-webkit-box-pack:center;-webkit-box-align:center;} - note the height is important to ensure the span inherits the full h...
How to resize an image to fit in the browser window?
... max-height: 100%;
}
.center {
display: block;
margin: auto;
}
</style>
</head>
<body>
<img class="center fit" src="pic.jpg" >
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script t...
css rotate a pseudo :after or :before content:“”
...med, and pseudo elements are inline by default, so you must apply display: block or display: inline-block to transform them:
#whatever:after {
content:"\24B6";
display: inline-block;
-webkit-transform: rotate(30deg);
-moz-transform: rotate(30deg);
-o-transform: rotate(30deg);
...
Is “else if” faster than “switch() case”? [duplicate]
...inding out the performance difference between a switch case and an if-else block would be trivial.
Edit: For clarity's sake: implement whichever design is clearer and more maintainable. Generally when faced with a huge switch-case or if-else block the solution is to use polymorphism. Find the behav...
Why is document.write considered a “bad practice”?
...
It can block your page
document.write only works while the page is loading; If you call it after the page is done loading, it will overwrite the whole page.
This effectively means you have to call it from an inline script block - ...
Why use the yield keyword, when I could just use an ordinary IEnumerable?
...
The benefit of iterator blocks is that they work lazily. So you can write a filtering method like this:
public static IEnumerable<T> Where<T>(this IEnumerable<T> source,
Func<T, bool> predi...
How can I draw vertical text with CSS cross-browser?
...
Make sure your text is a block element ie use display:inline-block or similar
– James Westgate
Apr 22 '13 at 12:37
...
Vsphere 6 集群上 安装 oracle rac 遇到的共享磁盘故障 - 数据库(内核) - ...
...udevtest udevinfo 等命令
在rehl 6 中要换成
udevadm -a -p /sys/block/sdc/sdc1
209715200
1677721600
比较一下 不同的，并且好记录的参数为 KERNEL ATTR{size}
把下列参数修改为
KERNEL=="sd*", BUS=="scsi", PROGRAM=="/sbin/scsi_id --whitelisted...
Using Node.js only vs. using Node.js with Apache/Nginx
...n server to serve static files as so many (every?) competing technologies (PHP, Ruby, Python, etc) require a web server like HTTPD or Nginx in front of the application server(s).
Every objective reason I have ever read against serving static files with Node revolves around the idea of using what yo...
SourceKitService Terminated
...or add it to an existing one. As soon as the source contains one extension block, it will crash. This happens even on newly created projects.
My "solution" is to avoid extension in the sources I'm currently working on. I comment out the end of a class block and the beginning of the extension block....