#blog h1,h3, h4 {
    text-align: center;
}

#blog .contenedor{
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

#blog article {
    margin: 15px;
}

#blog img {
    width: 100%;
    max-width: 280px;
}
#banner {
    margin-top: 175px;
    position: relative;
}

#banner img {
    width: 100%;
    height: 100%;
}

#banner .contenedor {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
    color: #fff;
}

#banner h2 {
    font-size: 28px;
}

#banner a {
    display: block;
    width: 100px;
    color: #fff;
    text-decoration: none;
    padding: 7px;
    margin-top: 10px;
    border: 3px solid #fff;
}

#banner a:hover {
    background: rgba(51,51,51,0.5);
}

@media (min-width:480px) {
    #banner h2 {
        font-size: 40px;
    }
    
    #banner a {
        margin-top: 25px;
    }
}

@media (min-width:768px) { 
    #banner {
        height: 300px;
        overflow: hidden;
    }
    
    #banner img {
        height: auto;
        margin-top: -100px;
    }
}

@media (min-width:1024px) { 
    #banner img {
        margin-top: -200px;
    }
}

#info {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 20px;
}

#info .contenedor {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.info-pet {
    margin: 20px;
}

.info-pet img {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    border: 7px solid #fff;
}

@media (min-width:480px) {
    .info-pet {
        width: 40%;
    }
}

@media (min-width:1024px) {
    .info-pet {
        width: auto;
    }
}