you have a lot of typos. a correct markup should be like: <iframe src="./myPage.aspx" id="myIframe" scrolling="no" frameborder="0" ... ... <看更多>

Setting Up the HTML and CSS Styles. Create a container div around the iframe code and give it a class eg: <div class="video-container"><iframe ... ... <看更多>

querySelector('iframe'); iframe.width = '' + width; iframe.height = '' + height; }. As you can see, the code locates the div, yet ignores it ... ... <看更多>

Add a CSS class to the iframe. <div class="video-container"> ... ... <看更多>

<div class="video-container">. <iframe width="560" height="315" src="https://www.youtube.com/embed/D6Ac5JpCHmI" allowfullscreen></iframe>. ... <看更多>

This size is ideal for promoting your Page in a small space, such as the top of a sidebar. <div class="fb-page" data-href="https://www.facebook.com/facebook" ... ... <看更多>

長寬比， RWD 等比例縮放| pure CSS make div, iframe element keep ... 要讓物件等比例的話必須要設定物件的寬width跟高height都是用相同的單位才 ... ... <看更多>

frameborder="0" allowfullscreen class="video"></iframe> </div> And use the following CSS: .container { position: relative; width: 100%; ... <看更多>

The <iframe> (and video player) will replace this <div> tag. ... Player object, you do not need to specify values for the width and height ... ... <看更多>

Responsive Youtube embeds use iframes, CSS & HTML to make your Youtube ... video to re-size depending on the browser size or device width. ... <看更多>

All I need is that the generated iFrame for my App Part has the property of width=100% and my div class= "ms-webpart-chrome-title" without any ... ... <看更多>

responsive image with srcset and sizes attribute ... <iframe data-src="//www.youtube.com/embed/ZfV-aYdU4uE" class="lazyload" frameborder="0" ... ... <看更多>

Web fonts Less images Improved UX Device targeting Faster page speeds Efficient site building Ease of @media all and (max-device-width: 480px) { } @ ... ... <看更多>

<div class="video-container"> <iframe src="https://www.youtube.com/embed/. ... width:100%; } .video-container::after { padding-top: 56.25%; ... ... <看更多>