fixed

Can someone give an example of a good time to actually use "unsafe" and "fixed" in C# code? I've played with it before, but never actually found a good use for it. Consider this code... fixed (byte* pSrc = src, pDst = dst) { //Code that copies the bytes in a loop } compared to simply using... Array.Copy(source, target, source.Length); The second is the code found in the .NET Framework, the first a part of the code copied from the Microsoft website, http://msdn.microsoft.com/en-us/library/28k1s2k6(VS.80).aspx . The built in Array.Copy() is dramatically faster than using Unsafe code. This might

When you scroll with the mouse wheel in Windows 8 the fixed background image bounces around like crazy. This only affects IE 10 and IE 11. This affects elements with position:fixed as well. Here is an example with a fixed background-image: http://www.catcubed.com/test/bg-img-fixed.html Here is example code: #section{ position: fixed; top:0; left:0; background-color:#eee; background-position: top left; background-image: url("images/7.png"); background-size: auto; background-repeat: no-repeat; z-index: 10; } Is there a solution to keep the background still in IE 10 and 11? I know it is a bit

So the site in question: http://kaye.at/baby The main content below scrolls up over the top of the countdown and under the navigation which are both fixed elements. This works fine on desktop but on mobile safari, the content scrolls behind the countdown as the user moves up but once touch is released, it pops in front. Just wondering whether this is a bug or it is something that can be fixed? Here's the CSS: #header { position: fixed; width: 100%; top: 0px; z-index: 10; } #content { width: 100%; position: relative; top: 650px; z-index: 7; } #banner { position: fixed; width: 100%; position:

This is a bit of an obscure issue, but I'm using jQuery Sortables and trying to get two connected lists working together nicely when one is positioned as fixed . It all works fine until you scroll the page a bit such that the two lists end up positioned on top of each other. Then the lists seem to get confused as to which one should be receiving the item that's being dragged, meaning you get a bunch of jittering happening as it appears/disappears in each list. It looks like the issue is that both lists are handling the mouse/sort events since the item being dragged is technically over both

目录 -webkit-overflow-scrolling:touch是什么？ 解决safari布局抖动的例子 2.1 方案一 2.2 方案二 探究-webkit-overflow-scrolling:touch偶尔卡住或不能滑动的bug 3.1 保证使用了该属性的元素上没有设置定位 3.2 如果添加动态内容页面不能滚动，让子元素height+1 3.3 为什么会有卡住不动的这个bug -webkit-overflow-scrolling:touch的其他坑 最后的吐槽 -webkit-overflow-scrolling:touch是什么？ MDN上是这样定义的： -webkit-overflow-scrolling 属性控制元素在移动设备上是否使用滚动回弹效果. auto: 使用普通滚动, 当手指从触摸屏上移开，滚动会立即停止。 touch: 使用具有回弹效果的滚动, 当手指从触摸屏上移开，内容会继续保持一段时间的滚动效果。继续滚动的速度和持续的时间和滚动手势的强烈程度成正比。同时也会创建一个新的堆栈上下文。 在移动端上，在你用overflow-y:scorll属性的时候，你会发现滚动的效果很木，很慢，这时候可以使用-webkit-overflow-scrolling:touch这个属性，让滚动条产生滚动回弹的效果，就像ios原生的滚动条一样流畅。

I've had this issue for a while and it seems to be a Chrome redraw bug that hasn't been fixed. So I'm looking for any stop-gap fixes. The main issue is that when an element on the page has a background image that uses: background-attachment: fixed; If another element is fixed and has a child video element it causes the element with the background image to disappear. Now it works fine in Safari (and Firefox and IE) so it's not exactly a webkit issue. I've applied several properties that have been suggested to no avail. -webkit-backface-visibility: hidden; -webkit-transform: translate3d(0, 0, 0)