body
{
    border: 0;
    background-color: #2c3e50;
    margin-top: 15px;
}

div.container2 p {
    color: white;
    font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
    font-size: 35px;
    text-align: center;
}

div.container4{

    height: 3em;
    display: flex;
    align-items: center;
    justify-content: center 
}

div.contprincipal{
    position: absolute;
        top: 45%;
        left: 50%;
        margin-right: -50%;
        transform: translate(-50%, -50%) }
}