div#mascara:hover {
    transition: opacity 0.2s;
    opacity: 1;
}

div#mascara {
    opacity: 0;
    width: 123px;
    height: 162px;
    position: absolute;
    cursor: pointer;
    transition: opacity 0.2s;
}

    div#mascara > div#fundoPreto {
        background-color: black;
        width: 100%;
        position: absolute;
        border-bottom-left-radius: 4px;
        border-bottom-right-radius: 4px;
        bottom: 0%;
        z-index: 2;
        opacity: 0.7;
    }

    div#mascara > div#texto {
        position: absolute;
        bottom: 0%;
        font-family: montserrat;
        color: #cccccc;
        z-index: 2;
        left: 24%;
    }