#home-obras .item{
    transition: 0.3s;
}
#home-obras .item:hover{
    opacity: 0.7;
    filter: alpha(opacity=70); /* For IE8 and earlier */
}
#home-obras .item .bloco{
    width: 50%;
    height: 100%;
    float: left;
}
#home-obras .item .bloco .obra-titulo{
    width: 50%;
    height: 50%;
    padding: 20px 40px;
    position: absolute;
    top: 50%;
 
    overflow: hidden;
    transition: 0.2s;
    
    text-align: center;
    color: #FFF;
    font-size: 22px;
    font-weight: bold;
    background: rgba(46,49,146,.9);
    
    
    display: -webkit-flex;
    display: flex;
    -webkit-align-items: center;
    align-items: center;
    -webkit-justify-content: center;
    justify-content: center;
}