Want to download an enormous file but your Mac keeps going to sleep and not letting you do it? Well, all you have to do now is, not letting it go to sleep. It is as simple as it sounds! Just install any of these two amazing Utility Applications that allows you to precisely do that. CAFFEINE: This is coffee with the highest dose of caffeine for your Mac to make it stay put! Open it and it appears on you menu bar, turn it on (turns bold when turned on)whenever you want your Mac to do things when you aren’t on it.

Caffeine offers time windows for activation. Support: This lighthead software’s app will keep your Mac awake as long as its running OS X 10.6 or later.

This insomniac app is available in the Mac Appstore absolutely FREE of cost. NO SLEEP: This is it! This is the mother of all insomniac apps out there in the Mac Appstore.

That is why this is not available in the Appstore, but outside. As the other counterparts, it again fits in your menu bar for easy access where it can be turned on or off by double clicking it (turns blue on turning on). But there is this one out of the world feature that makes it the one:. You can CLOSE your Mac but this bad boy keeps it running!

这是目前我认为最完善的版本，搬过来给大家参考。57种英文邮件结尾法Best This is the most ubiquitous; it's totally safe. I recommend it highly and so do the experts.最普遍；最安全。我和专家们都极力推荐这个。My BestA little stilted.

Wodewose/keepformac Keep For Mac Desktop

Etiquette consultant Lett likes it.有点生硬。礼仪顾问莱特喜欢这个。My best to youLett also likes this one. I think it's old-fashioned.莱特也喜欢这个。我认为它过时了。All BestHarmless.可以用。All the bestThis works too.这个也可以。Best WishesSeems too much like a greeting card but it's not bad.看起来特别像贺卡，但是还不赖。BestsI know people who like this but I find it fussy. Why do you need the extra 's'?我知道有人喜欢，但是我觉得它很繁琐。为什么你需要多余的“s”？Best RegardsMore formal than the ubiquitous 'Best'. I use this when I want a note of formality.比最普遍的“Best”更正式。当我想要正式的写结尾时我会用这个。RegardsFine, anodyne, helpfully brief. I use this.不错，稳重，简短。我用这个。RgdsI used to use this but stopped, because it's trying too hard to be abbreviated. Why not type three more letters?

Wodewose/keepformac Keep For Mac

“实际上它是一个刮胡刀”——长文考证，结束此题。既然是说网页HTML，那就先找到HTML的制定组织，即W3C（Semantics, structure, and APIs of HTML documentsHTML 4.01的：Basic HTML data typesHTML5官方文档节选：The lang attribute (in no namespace) specifies the primary language for the element's contents and for any of the element's attributes that contain text. Its value must be a valid BCP 47 language tag, or the empty string. Setting the attribute to the empty string indicates that the primary language is unknown. BCP47HTML 4.01官方文档节选：The value of attributes whose type is a language code (%LanguageCode in the DTD) refers to a language code as specified by RFC1766, section 2. For information on specifying language codes in HTML, please consult the section on language codes.现在这个年代，讨论HTML5即可，那就看看“BCP 47”是什么。W3C官方有讲解：Choosing a language tag，这篇文章详细的讲解了如何选择语文代码，仔细读一遍，此问题即有了答案。节选如下：Language tag syntax is defined by the IETF's BCP 47. In the past it was necessary to consult lists of codes in various ISO standards to find the right subtags, but now you only need to look in the IANA Language Subtag Registry.

We will describe the new registry below.BCP stands for 'Best Current Practice', and is a persistent name for a series of RFCs whose numbers change as they are updated. 你的问题很有道理。解释一下 lib-flexible 里的 rem 和 px 各自的含义在 lib-flexible 方案里，rem 实际上就是 vw 的变种，都是 viewport 宽度比例单位 (在某些情况下，该方案也会有意识地打破这个设定)既然是 viewport 的宽度比例，那么也就是说无论你怎么缩放 viewport，布局都是相对 viewport 宽度不变的。 那么为什么还要缩放 viewport 为 1/dpr 呢?注意，为什么是 scale 是 1/dpr 而不是其他值? 因为在这个缩放比例下，css 中的 1px 即为屏幕的 1 物理像素，实际上是取消了 px 作为 device independent pixel 的含义。本来 dpr 发明了就是为了让 px 做 dip 用，现在 lib-flexible 绕了一圈把 dpr 取消了，让 px 重新变成物理像素的含义。好处其实只有一个，就是我们能用 1px 画出 1物理像素的东西了，比如1物理像素的细边框。其实 lib-flexible，有没有好处? A currency miner in calendar 2 for mac.