body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
}

header {
    background-color: blueviolet;
    display: flex;
    height: 70px;
    justify-content: space-between;
    text-align: center;
}

.galeria {
        display: flex;
        justify-content: space-between;
}

.galeria img {
    height: 350px;
    width: 350px;
}

.galeria2 {
    text-align: center;
}

.galeria2 img {
    height: 350px;
    width: 370px;
}