I'm working on a news aggregation site's homepage and we're supposed to have a couple of areas that pull in content with the photo in the background and text on top with a gradient between the two. For the most part I have it except even though the z-index is lower, the gradient still appears above the text box. I've already experimented with this on a solid background just to be sure. The code and example are here: http://jsfiddle.net/cx0uvshd/
<style type="text/css">
    .feature {
        position: relative;
        float: left; 
        width: 465px; 
        height: 170px;  
        margin-top: 24px; 
        margin-right: 30px; 
    }
    .feature.last { 
        margin-right: 0; 
    }
    .feature-bottom {
        background: none;
        position: absolute;
        bottom: 0;
        left: 0;
        padding: 0 30px 6px;
        width: 100%;
        z-index: 200;
        line-height: 1;
    }
    .feature-bottom::after {
        content: "";
        position: absolute;
        bottom: 0px;
        left: 0px;
        width: 100%;
        height: 100%;
        z-index: 100;
        background: rgba(0,0,0,0);
        background: -moz-linear-gradient(top, rgba(0,0,0,0) 0%, rgba(0,0,0,0.5) 50%, rgba(0,0,0,0.5) 100%);
        background: -webkit-gradient(left top, left bottom, color-stop(0%, rgba(0,0,0,0)), color-stop(50%, rgba(0,0,0,0.5)), color-stop(100%, rgba(0,0,0,0.5)));
        background: -webkit-linear-gradient(top, rgba(0,0,0,0) 0%, rgba(0,0,0,0.5) 50%, rgba(0,0,0,0.5) 100%);
        background: -o-linear-gradient(top, rgba(0,0,0,0) 0%, rgba(0,0,0,0.5) 50%, rgba(0,0,0,0.5) 100%);
        background: -ms-linear-gradient(top, rgba(0,0,0,0) 0%, rgba(0,0,0,0.5) 50%, rgba(0,0,0,0.5) 100%);
        background: linear-gradient(to bottom, rgba(0,0,0,0) 0%, rgba(0,0,0,0.5) 50%, rgba(0,0,0,0.5) 100%);
        filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#000000', endColorstr='#000000', GradientType=0 );
    }
    .feature-bottom h3 { 
        color: #FFF; 
        font-size: 15px; 
        font-weight: 400; 
        margin: 0; 
    }
    .feature-bottom h2 { 
        color: #FFF; 
        font-size: 24px; 
        font-weight: 400; 
        margin: 0; 
    }
</style>
 
     
     
     
     
    