.bg-proyecto{
    background-size: cover; 
    background-position: center; 
    background-color: rgba(0, 0, 0, 0.3);
    background-blend-mode: multiply;
    height: 450px; width:100%;
}

.img-proyecto{
    position: absolute;
    left:50%;
    width:300px; 
    max-height:150px;
    transform: translate(-50%, -25%);
}