fixed

Does anyone know how to make multiple on scroll fixed headers? I've checked answers such as this . It's kind of what I want, but I want that header to stop before another header and when the first header gets scrolled past the second header should be taking the first header's place and stick at the very top of the screen. But they don't work for me because they're using libraries that I'm not working with(jQuery, etc.) and they are overly, overly complicated. I've tried to do this, I got it to work with getBoundingClientRect() with only 2 headers. I've provided the HTML&CSS part here: html,

I am attempting to create a fixed step loop in my program, but for some reason I just can't seem to get it to work properly. Basically what I need is a loop that does: while(!over) { Update(elapsedtime); Draw(elapsedtime); } or something similar, with a . I've tried using Thread.Sleep but I'm not so sure it gave me a real fixed step loop, and when I tried to implement the solution on this website I had problems due to the fact that I couldn't see a way to save the state of the objects affected by the loop. This forced me to exclude that part, which led to slowdown when there were many objects

I had a problem with gallery that is position:fixed; and the site content is scrolling over it. That position fixed worked in every single browser except in Safari on Windows 7 (yes it worked even in IE8, and Safari on Mac). Top is defined, but yet it still act as a position relative and scroll down with the rest of the content. The solution was to define the z-index on that position:fixed; element. For some reason only on Windows Safari position:fixed; didn't work until any z-index was defined. Later, I discover that this bug is probably caused by -webkit-transform property that some of the

I've discovered a rather odd problem, which I think I know how to explain; i just don't know how to fix it! I have a page with a div#container (a div with 100% min-height (height for IE)) containing a header, a "page-content" and a footer. The background image of the div#container is supposed to be fixed (not fixed position but background-attachment: fixed which makes the picture follow when you scroll). The problem is, that when fixed attachment is added to the background-tag in CSS, the background picture is now positioned outside the div. The CSS is as follows: (without background

Is it possible to set header and footer at ListActivity to be fixed at the top and the bottom, so only the content (list) is scrolling, not also header and footer? I have both set like this: View header = getLayoutInflater().inflate(R.layout.list_header, null); View footer = getLayoutInflater().inflate(R.layout.list_footer, null); ListView listView = getListView(); listView.addHeaderView(header); listView.addFooterView(footer); You can achieve it by using a custom XML layout in which you will set the layout of your header, footer and list. Note that to be compatible with ListActivity this

Let's say I want to have a value type of 7 bytes (or 3 or 777). I can define it like that: public struct Buffer71 { public byte b0; public byte b1; public byte b2; public byte b3; public byte b4; public byte b5; public byte b6; } A simpler way to define it is using a fixed buffer public struct Buffer72 { public unsafe fixed byte bs[7]; } Of course the second definition is simpler. The problem lies with the unsafe keyword that must be provided for fixed buffers. I understand that this is implemented using pointers and hence unsafe. My question is why does it have to be unsafe? Why can't C#

一个页面中有头部、底部和中间内容区域，底部固定在屏幕底端。 头部header 内容main 底部footer 方法一、 在main上使用fixed定位，加上overflow-y属性。 .main { position: fixed; top: 50px; bottom: 50px; overflow-y: scroll; } 不推荐这个fixed方案，因为页面偶尔卡住不动。 方法二、 中间的 main不设定位 ， 高度100% ，再 padding头部和尾部 ， 　　其中头部和底部的定位设为 absolute 会比设为 fixed 体验更好（况且fix布局在移动端本来就有各种各样的问题，还是尽量避开:) ）。 html, body { height: 100%; } main { padding: 50px 0; height: 100%; overflow-y: scroll; -webkit-overflow-scrolling: touch; } 　　ps: webkit-overflow-scrolling:touch偶尔卡住或不能滑动的bug 　　最常见的例子就是： 在safari上，使用了 -webkit-overflow-scrolling:touch 之后，页面偶尔会卡住不动。 在safari上，点击其他区域，再在滚动区域滑动，滚动条无法滚动的bug。