estilos-series.css

*{
    margin:0;
    padding: 0;
    box-sizing: border-box;
}

.galeria{
    font-family: 'open sans';
}

.galeria h1{
    text-align: center;
    margin:20px 0 15px 0;
    font-weight: 300;
font-family: 'Acme', sans-serif;
}

.linea{
    border-top: 5px solid #00ffff;
    margin-bottom: 40px;
}

.contenedor-imagenes{
    display:flex;
    width: 85%;
    margin: auto;
    justify-content: space-around;
    flex-wrap: wrap;
    border-radius:3px;
}

.contenedor-imagenes .imagen{
    width: 32%;
    position: relative;
    height:250px;
    margin-bottom: 25px;
    box-shadow: 0px 0px 3px 0px rgba(0, 0, 0, .75)
    cursor: pointer;
}
.imagen img{
    width: 100%;
    height:100%;
    object-fit: cover;
    cursor: pointer;
}

.overlay{
    position: absolute;
    bottom: 0;
    left: 0;
    background:rgba(0, 118, 192, 0.781) ;
    width: 100%;
    height: 0;
    overflow: hidden;
    transition: .5s ease;
}

.overlay h2{
    color: #fff;
    font-weight: 300;
    font-size:30px;
    position: absolute;
    top: 50%;
    left:50%;
    text-align: center;
    transform: translate(-50%, -50%);
}

.hover-galeria{
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    transform: scale(0);
    background: hsl(174deg 98% 50% / 47%);
    transition: transform .5s  ease;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    cursor: pointer;
}

.hover-galeria img{
    width: 150px;
    height: 150PX;
}

.hover-galeria p{
    color: #fff;
        font-size: 25px;
    font-weight: 225;
font-family: 'Acme', sans-serif;
webkit-text-stroke: 4px black;
text-shadow: 1px  0px 0px black,
              0px  1px 0px black,
             -1px  0px 0px black,
              0px -1px 0px black;
    cursor: pointer;

}

.imagen:hover .hover-galeria{
    transform: scale(1);
}

.textos-imagenesimagenes{
  height: 10%;
}

.textos-imagenes h4{
  line-height: 30px;
  font-weight: 300;
}

@media screen and (max-width:1000px){
    .contenedor-imagenes{
        width: 95%;
    }
}

@media screen and (max-width:700px){
    .contenedor-imagenes{
        width: 90%;
    }
    .contenedor-imagenes .imagen{
        width: 48%;
    }
}

@media screen and (max-width:450px){
    h1{
        font-size:22px;
    }
    .contenedor-imagenes{
        width: 98%;
    }
    .contenedor-imagenes .imagen{
        width: 80%;
    }
}