Css 保持iframe比率与响应性缩放

我想保持我的视频嵌入iframe的尺寸不变，因为它可以缩小

此时会出现两条黑线，并随着缩放而变大

例如：

最简单的方法是什么？如果可能的话，我想在没有Javascript的情况下完成这项工作

CSS

HTML

---

您可以通过将视频放置在设置为“相对”的容器中来实现这一点。将容器的宽度设置为100%，然后使用填充创建所需的纵横比

以100%的宽度和高度定位视频绝对值，它将填充容器

<div class="video">
    <iframe ></iframe> 
</div>

.video{
   width:100%;
   padding-bottom:55.5%;
   position:relative;
}

.video iframe{
 position:absolute;
    width:100%;
    height:100%;
}

例如：

---

您可以使用百分比，而不是固定的高度和宽度。否则，javascript就是最好的选择。请参阅此处的相关/dup帖子：谢谢，这是可行的，但我希望它在调整大小之前保持原来的大小，如本例所示：

<h2>I Like Meat</h2>

<img src="http://www.newhealthguide.org/images/10439404/image001.jpg">

<p>Bacon ipsum dolor sit amet beef turducken andouille ball tip prosciutto. Fatback cow venison, turkey strip steak kielbasa flank ham pancetta filet mignon kevin boudin tongue. Andouille t-bone leberkas beef short loin. Spare ribs tongue rump tri-tip t-bone hamburger pastrami landjaeger sirloin bresaola doner shank salami. Porchetta pancetta ribeye meatball, venison turducken spare ribs doner sirloin t-bone strip steak. Jerky t-bone venison pancetta fatback short ribs chicken turkey pork chop sausage. Turkey doner ball tip ribeye tail.</p>

<p>Sirloin jowl salami, flank porchetta ball tip filet mignon pork tongue ground round swine ham hock hamburger spare ribs frankfurter. Short loin tongue filet mignon ham hock turkey meatball salami strip steak pork chop hamburger jowl. Pork loin tongue short ribs prosciutto chuck. Short loin landjaeger tri-tip, ground round capicola shoulder ham hock pig tenderloin pastrami.</p>

<p>Tail strip steak salami pig sirloin frankfurter kevin short ribs bresaola doner. Bresaola t-bone pork loin prosciutto frankfurter bacon beef meatball. Andouille cow leberkas shankle. Strip steak ribeye chicken, ball tip flank turkey jerky turducken meatball pork chop jowl brisket kevin short loin. Kielbasa jerky meatloaf frankfurter shank filet mignon salami pork belly biltong. Beef ribs ball tip tongue andouille, shankle meatloaf chuck hamburger. Swine ribeye pancetta meatloaf, bresaola bacon ham ground round meatball turkey chicken frankfurter.</p>

<p>Sirloin jowl salami, flank porchetta ball tip filet mignon pork tongue ground round swine ham hock hamburger spare ribs frankfurter. Short loin tongue filet mignon ham hock turkey meatball salami strip steak pork chop hamburger jowl. Pork loin tongue short ribs prosciutto chuck. Short loin landjaeger tri-tip, ground round capicola shoulder ham hock pig tenderloin pastrami.</p>

<img src="http://churchhillnaturalmeats.com/wp-content/uploads/2012/12/churchhill-natural-meats-meat-variety1.jpg">

<p>Bacon ipsum dolor sit amet beef turducken andouille ball tip prosciutto. Fatback cow venison, turkey strip steak kielbasa flank ham pancetta filet mignon kevin boudin tongue. Andouille t-bone leberkas beef short loin. Spare ribs tongue rump tri-tip t-bone hamburger pastrami landjaeger sirloin bresaola doner shank salami. Porchetta pancetta ribeye meatball, venison turducken spare ribs doner sirloin t-bone strip steak. Jerky t-bone venison pancetta fatback short ribs chicken turkey pork chop sausage. Turkey doner ball tip ribeye tail.</p>

<p>Sirloin jowl salami, flank porchetta ball tip filet mignon pork tongue ground round swine ham hock hamburger spare ribs frankfurter. Short loin tongue filet mignon ham hock turkey meatball salami strip steak pork chop hamburger jowl. Pork loin tongue short ribs prosciutto chuck. Short loin landjaeger tri-tip, ground round capicola shoulder ham hock pig tenderloin pastrami.</p>

<p>Tail strip steak salami pig sirloin frankfurter kevin short ribs bresaola doner. Bresaola t-bone pork loin prosciutto frankfurter bacon beef meatball. Andouille cow leberkas shankle. Strip steak ribeye chicken, ball tip flank turkey jerky turducken meatball pork chop jowl brisket kevin short loin. Kielbasa jerky meatloaf frankfurter shank filet mignon salami pork belly biltong. Beef ribs ball tip tongue andouille, shankle meatloaf chuck hamburger. Swine ribeye pancetta meatloaf, bresaola bacon ham ground round meatball turkey chicken frankfurter.</p>

<p>Sirloin jowl salami, flank porchetta ball tip filet mignon pork tongue ground round swine ham hock hamburger spare ribs frankfurter. Short loin tongue filet mignon ham hock turkey meatball salami strip steak pork chop hamburger jowl. Pork loin tongue short ribs prosciutto chuck. Short loin landjaeger tri-tip, ground round capicola shoulder ham hock pig tenderloin pastrami.</p>

<iframe src="//player.vimeo.com/video/88680344?title=0&amp;byline=0&amp;portrait=0&amp;color=f68f85" width="650" height="366" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe> 

<p>Sirloin jowl salami, flank porchetta ball tip filet mignon pork tongue ground round swine ham hock hamburger spare ribs frankfurter. Short loin tongue filet mignon ham hock turkey meatball salami strip steak pork chop hamburger jowl. Pork loin tongue short ribs prosciutto chuck. Short loin landjaeger tri-tip, ground round capicola shoulder ham hock pig tenderloin pastrami.</p>

<p>Tail strip steak salami pig sirloin frankfurter kevin short ribs bresaola doner. Bresaola t-bone pork loin prosciutto frankfurter bacon beef meatball. Andouille cow leberkas shankle. Strip steak ribeye chicken, ball tip flank turkey jerky turducken meatball pork chop jowl brisket kevin short loin. Kielbasa jerky meatloaf frankfurter shank filet mignon salami pork belly biltong. Beef ribs ball tip tongue andouille, shankle meatloaf chuck hamburger. Swine ribeye pancetta meatloaf, bresaola bacon ham ground round meatball turkey chicken frankfurter.</p>

<p>Sirloin jowl salami, flank porchetta ball tip filet mignon pork tongue ground round swine ham hock hamburger spare ribs frankfurter. Short loin tongue filet mignon ham hock turkey meatball salami strip steak pork chop hamburger jowl. Pork loin tongue short ribs prosciutto chuck. Short loin landjaeger tri-tip, ground round capicola shoulder ham hock pig tenderloin pastrami.</p>

<div class="video">
    <iframe ></iframe> 
</div>

.video{
   width:100%;
   padding-bottom:55.5%;
   position:relative;
}

.video iframe{
 position:absolute;
    width:100%;
    height:100%;
}