我在bootstrap 3中有一个缩略图视频库。每个缩略图都有一个鼠标悬停时出现的文本覆盖。这一切都很好,但我现在正在尝试向叠加层添加播放图标。问题是,虽然原始文本缩略图是响应的,但播放图标不是。我有什么问题?
这是fiddle
<div class="container">
<div class="row">
<div class='col-sm-3 col-xs-6 col-md-3 col-lg-3 padding-0'>
<div class="thumbnail">
<a class="fancybox-media" data-fancybox-type="iframe" href="https://www.youtube.com/embed/PVob_tATVRI">
<div class="caption">
<h4 class="">Richard Feynman</h4>
<p class=""> Watch Him</p>
</div>
<!-- /.caption-->
<img src="https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcR-JZQIhP_M6qtpPy4Hih-LsyGSBe5m7OlaRi5INdHVGy-bJRYIUg" alt="" class="img-responsive"></a>
</div>
<!-- /.thumb-->
</div>
<!-- /.col -->
</div>
<!--end row-->
</div>
<!-- /.container -->
CSS
.thumbnail {
position: relative;
overflow: hidden;
background: transparent;
border: none;
}
.caption {
position: absolute;
top: 0;
right: 0;
background: rgba(0, 0, 0, 0.75);
width: 100%;
height: 100%;
padding: 2%;
display: none;
text-align: left;
color: #fff !important;
z-index: 2;
/*This is the play icon I ant to be responsive */
background: transparent url(http://www.oceania-attitude.com/applications/site/views/oceania/images/icons/play-video.jpg) no-repeat center;
}
的jQuery
$("[rel='tooltip']").tooltip();
$(document).ready(function() {
$('.thumbnail').hover(
function() {
$(this).find('.caption').slideDown(250); //.fadeIn(250)
},
function() {
$(this).find('.caption').slideUp(250); //.fadeOut(205)
}
);
});
答案 0 :(得分:1)
您正在设置背景图片,购买时未指定尺寸,因此默认为完整尺寸。
您可以使用百分比设置相对于容器大小的background-size
,例如以下将使图像的容量减半:
background-size: 50%;
在您的情况下,如果您希望图像填充容器,您可以将背景设置为100%,例如
background: transparent url([your url]/play-video.jpg) no-repeat center;
background-size: 100%;
工作代码段
/* Latest compiled and minified JavaScript included as External Resource */
$("[rel='tooltip']").tooltip();
$(document).ready(function() {
$('.thumbnail').hover(
function() {
$(this).find('.caption').slideDown(250); //.fadeIn(250)
},
function() {
$(this).find('.caption').slideUp(250); //.fadeOut(205)
}
);
});
.thumbnail {
position: relative;
overflow: hidden;
background: transparent;
border: none;
}
.caption {
position: absolute;
top: 0;
right: 0;
background: rgba(0, 0, 0, 0.75);
width: 100%;
height: 100%;
padding: 2%;
display: none;
text-align: left;
color: #fff !important;
z-index: 2;
background: transparent url(http://www.oceania-attitude.com/applications/site/views/oceania/images/icons/play-video.jpg) no-repeat center;
background-size: 100%;
}
/* Added for tesing because your img-responsive class isn't working */
img { width: 100%; height: auto;}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet" />
<div class="container">
<div class="row">
<div class='col-sm-3 col-xs-6 col-md-3 col-lg-3 padding-0'>
<div class="thumbnail">
<a class="fancybox-media" data-fancybox-type="iframe" href="https://www.youtube.com/embed/PVob_tATVRI">
<div class="caption">
<h4 class="">Richard Feynman</h4>
<p class="">
Watch Him</p>
</div>
<!-- /.caption-->
<img src="https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcR-JZQIhP_M6qtpPy4Hih-LsyGSBe5m7OlaRi5INdHVGy-bJRYIUg" alt="" class="img-responsive">
</a>
</div>
<!-- /.thumb-->
</div>
<!-- /.col -->
</div>
<!--end row-->
</div>
<!-- /.container -->
注意:
这使得背景图像成为容器的100%,即使容器大于原始图像大小。在您的情况下,您已将视频放入Bootstrap cols中,因此它不应成为问题,但如果它确实成为问题,您只需使用媒体查询来更改百分比值以适应。
示例:使背景图像响应,直到屏幕大小达到768px,然后将其限制为固定大小:
.caption {
background: transparent url([your url]/play-video.jpg) no-repeat center;
background-size: 100%;
}
@media (min-width: 768px){
.caption {
background-size: 400px 300px;
}
}