If you host your videos on a third party site such as YouTube or Vimeo, their video player will handle choosing the best quality for the user’s available bandwidth.
#Css responsive resize div download
The faster the page loads, the faster the video player can download the first chunk of video, render a preview, display metadata (video length, title, etc) and begin buffering. We should do all we can to limit the amount of bandwidth and processor used to display the page. Mobile processors are much slower than desktop computers, so we want to limit the amount of script executions so they can render the webpage instead.įrom the user’s perspective, the content (video in this case) is more important than the technology used to get the content. The impact is even greater for mobile devices which can be painfully slow when you roaming on cellular data. Videos are much larger than text content or images and will place the highest demand on bandwidth. According to the FCC, nearly 34 million Americans lack access to fixed broadband internet access. Living in large cities in developed nations, we get accustomed to fast internet speeds.
#Css responsive resize div code
Adding another JavaScript library or additional code to download is rarely the best solution. So much for that argument!Īs a content provider, you are focused on getting the content to your audience with as few interruptions as possible. If someone is not comfortable manually adding a line of HTML to the video embed code, Embed Responsively will do it for them. Fortunately, that is no longer the case.Īnother justification for using JavaScript is that publishers may not be tech-savvy enough to do more than copy and paste a video embed snippet. Code started getting messy fast when we had to use several conditionals to check if the user agent was Internet Explorer and implement several CSS workarounds for various browsers. This type of blanket approach made sense when we needed to support many different browser versions with little or no support for modern web standards. Most articles I’ve read on the topic recommend using JavaScript to try and handle all possible scenarios. There are several approaches we can take using CSS, JavaScript, or a combination of the two. This happens when the source video is pillarboxed to fit a 4:3 aspect ratio then played back at 16:9. by increasing the width without adjusting the height accordingly).īlack bars on all sides of a video are called windowboxing. You will see pillarboxing in embeded video when you set a wider aspect ratio than the original (i.e. The player adds these bars to prevent distortion of the video image.īlack bars at each side of a video, called pillarboxing, are added to fit a 4:3 aspect ratio video in a 16:9 player. With most web video players, you will see letterboxing when you increase the height of an embedded video without changing its width. Black bars at the top and bottom of a video, called letterboxing, are common on videos with a widescreen (16:9) source that have been formatted to fit a 4:3 aspect ratio.
The video in the blue box has a fixed width and height, which causes it to spill over into the adjoining content area when the width of the blue box is less than the video width.ĭesktop users can narrow the browser window and the video will eventually stick past the page and not be fully visible.Īnother drawback of specifying the dimensions of a video is the black bars that display when the dimensions do not match the source aspect ratio. The section below is split into two columns, as seen by the blue and black boxes. Specifying a fixed width and height for a video can cause layout issues. What we are left with are the same concerns for responsive images: aspect ratio, quality, and file size. However, we can simplify things by ignoring file types, video and audio codecs, the video player, and the video source for this discussion. We probably don’t hear about responsive video often because video is complicated.
We want to avoid static sizing that can break page layouts, distort the image, or display black bars around the video. In order for a video to be responsive, the video should always expand to fill the width of its container while maintaining its original aspect ratio. What is responsive video and why don’t we hear more about it? Yet, people rarely mention video when they talk about responsive design.
Video is more prevalent on the web than ever before. ( function ( i, s, o, g, r, a, m ), 'US' ,
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