*
{
    margin: 0;
    padding: 0;
}
h2
{
    text-align: center;
    letter-spacing: 1px;
    font-family: arial;
    color:#003f80;
}
#linea_inicial
{
    width: 100%;
    background-color: #00b8e6;
    height: 8px;
}
img
{
    width: 50%;
    max-width: 600px;
}
@media screen and (max-width: 600px) {
    img
    {
        width: 90%;
        margin-top: 12%;
        margin-bottom: 5%;
    }
}