.div-anuncio-home{
    background:#009999;
    text-align:center;
    margin-bottom:20px;
    height:120px;
    margin-top:20px;
}
.div-anuncio-home a img{
    width:100%;
    height:120px;
}

@media screen and (min-width: 992px){
    
    .div-anuncio-home a img{
        width:50%;
        height:120px;
    }
    

}