Maintain padding when scaling image inside fixed size container

问题

I'm trying to create a zoom effect by using CSS transition to grow an image inside a fixed size container on hover. The container frame has a border and padding, and I would like them to stay when the image grows. The problem is that when it grows, the padding on the right and bottom disappear.

Here is the CSS code:

.videoframe {
width: 200px;
height: 113px;
border: solid 2px;
border-radius: 20px;
margin-right: 20px;
margin-bottom: 20px;
padding: 10px;
overflow: hidden;
}

.videoframe img {
border-radius: 20px;
width: 200px;
height: 113px;
-webkit-transition: all 1s ease;
-moz-transition: all 1s ease;
-o-transition: all 1s ease;
-ms-transition: all 1s ease;
transition: all 1s ease;
}

.videoframe img:hover {
width: 300px;
height: 168px;
overflow: hidden;
}

And here the HTML code:

<div class="videoframe"> <img src="image.jpg" /> </div>

Is there any way to maintain the 10px padding all the way around the image when it changes size?

回答1:

I've transfered the transition to the frame (when the frame gets hovered, the transition kicks in).

Working Fiddle

HTML: (another div added)

<div class="videoframe">
    <div>
        <img src="http://www.ac4bf-thewatch.com/initiates/upload/20130909/big_522e1c989c94f.jpg">
    <div>
 </div>

CSS

.videoframe
{
    width: 200px;
    height: 113px;
    border: 2px solid black;
    border-radius: 20px;
    margin-right: 20px;
    margin-bottom: 20px;
    padding: 10px;
}
.videoframe div
{
    border-radius: 20px;
    width: 100%;
    height: 100%;
    overflow: hidden;
}
.videoframe img
{

    width: 100%;
    height: 100%;
    -webkit-transition: all 1s ease;
    -moz-transition: all 1s ease;
    -o-transition: all 1s ease;
    -ms-transition: all 1s ease;
    transition: all 1s ease;
}

.videoframe:hover img
{
    width: 300px;
    height: 168px;
}

回答2:

sorry I'm a little bit confused, do you want the parent container to expand with the image?

if so please see http://jsfiddle.net/NcaAA/

you can use

-moz-box-sizing: border-box; 
-webkit-box-sizing: border-box; 
box-sizing: border-box;

with

padding:10px;

to keep consistent padding that takes into account the total width and height you want.

来源：https://stackoverflow.com/questions/18833437/maintain-padding-when-scaling-image-inside-fixed-size-container

标签

html

css

css3

padding