我一直在尝试让这个页面上的几个iframe居中 link。然而,我尝试过的每一个例子都不起作用。你可以清楚地看到视差浮动的div没有居中,底部的html页面的iframe也没有居中,而是向右浮动。非常感谢您的帮助。
display:block
+ margin:auto;
iframe {
display:block;
margin:auto;
}
<iframe></iframe>
http://codepen.io/mlegg10/pen/zqLdJy change the css padding-top and bottom to suit your needs
/* Flexible iFrame */
.Flexible-container {
position: relative;
padding-bottom: 56.25%;
padding-top: 30px;
height: 0;
overflow: hidden;
}
.Flexible-container iframe,
.Flexible-container object,
.Flexible-container embed {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}
<!-- Responsive iFrame -->
<div class="flexible-container">
<object width="100%" data=""https://drive.google.com/file/d/0BxrMaW3xINrsR3h2cWx0OUlwRms/preview"&toolbar=0&navpanes=0" type="application/pdf">
<embed width="100%" type="application/pdf" src="https://drive.google.com/file/d/0BxrMaW3xINrsR3h2cWx0OUlwRms/preview"?scrollbar=0&toolbar=0&navpanes=0">
</object>
</div>