Change brightness of JUST the background with CSS

Question

I want to change the brightness of a DIV's background, without affected the other contents in a div.

When I apply a hover brightness filter on the div, other elements in it are also affected. Which I do not want.

The other solution I have is simply replacing the background of the div with a photo edited one. But that asks for double the storage, which I do not like.

Is there a way to change just the brightness of the background-image?

JSFIDDLE

    <div id="replace">
    <div id="transparent">
        <span id="text">Random unaffected text</span>
    </div>
</div>

    <div id="brightnessfilter">
    <div id="transparent">
        <span id="text">Random AFFECTED text (it glows)</span>
    </div>
</div>

#replace {
width:700px;
height:465px;
background-image:url('http://i42.tinypic.com/351dff5.jpg');
}

#brightnessfilter {
    width:700px;
    height:465px;
    background-image:url('http://i42.tinypic.com/351dff5.jpg');
}

#brightnessfilter:hover {
     -webkit-filter: brightness(1.3);
-moz-filter: brightness(1.3);
-o-filter:  brightness(1.3);
-ms-filter:  brightness(1.3);
}

#transparent {
    position:relative;
    top:400px;
    width:700px;
    height:65px;
    background-color:rgba(0,0,0,.5);
    border-radius:8px;
}

#text {
    color:white;
    font-weight:bold;
    position:relative;
    top:9px;
    left:9px;
    font-size:16px;
}

#replace:hover {
    background-image:url('http://i40.tinypic.com/2cft7dl.jpg');
}

Above here is a link to a fiddle with my two attempts at creating the desired effect. But both have a disadvantage in using it.

Thanks in advance!

Answer 1

To apply the brightness to only the background image, you can place the image in a absolute positioned div so that the brightness only affects this element.

Setting the height and width to 100% on the new #image div will allow it to fill #brightnessfilter div in order to preserve the layout from your initial example.

#brightnessfilter {
  width: 700px;
  height: 465px;
  position: relative;
}

#image {
  background-image: url('http://i42.tinypic.com/351dff5.jpg');
  position: absolute;
  height: 100%;
  width: 100%;
  z-index: -1;
}

#brightnessfilter:hover #image {
  -webkit-filter: brightness(1.3);
  -moz-filter: brightness(1.3);
  -o-filter: brightness(1.3);
  -ms-filter: brightness(1.3);
}

#transparent {
  position: relative;
  top: 400px;
  width: 700px;
  height: 65px;
  background-color: rgba(0, 0, 0, .5);
  border-radius: 8px;
}

#text {
  color: white;
  font-weight: bold;
  position: relative;
  top: 9px;
  left: 9px;
  font-size: 16px;
}

#replace:hover {
  background-image: -webkit-linear-gradient(top, rgba(255, 255, 255, 0.01) 0%, rgba(255, 255, 255, 0.01) 100%), url('http://i40.tinypic.com/2cft7dl.jpg');
}

<div id="brightnessfilter">
  <div id="image"></div>
  <div id="transparent">
    <span id="text">Random AFFECTED text (it glows)</span>
  </div>
</div>