html, body{
    font-family: "HelveticaNeue-Light", "Helvetica Neue Light", "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif;
    font-size: 14px;
    line-height: 1.428.
}

.wrap{
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
    padding: 5%;
}

.logo{
    padding: 8%;
    padding-bottom: 0%;
    text-align: center;
}

.logo h1.big{ 
    font-size: 6rem;
    font-weight: bold;
    padding-bottom: 0.16em;
}

.logo img{
    width: 100%;
}

h1{
    font-size: 2.3rem;
}

h2{
    font-size: 2.143rem;
}
h3{
    font-size: 1.514rem;
}
h4{
    font-size: 1.286rem;
}

h5{
    font-size: 1.1rem;
}

.tech_container{ 
    width: 57%;

    margin-left: auto;
    margin-right: auto;

    margin-top: 3.4em;
    line-height: 1.4em;

    font-size: 1.1rem;
    text-align: justify;
}

.tech_container strong{ 
    font-weight: bold;
}

.contact{
    margin-top: 4em;
    font-size: 1.1rem;
    text-align: center;
}

.contact h4{}

.contact a{
    color: black;
/*
    display: block;
    text-align: center;
    margin-top: 10px;
    */
}

@media (max-width: 600px) {
    html{ font-size: 12px; }
    .logo h1.big{ font-size: 5rem; }
    .logo h1{ font-size: 1.9rem; }
}

@media (max-width: 400px) {
    html{ font-size: 10px; }
    .logo h1.big{ font-size: 5rem; }
    .logo h1{ font-size: 1.9rem; }
    .tech_container{ width: 70%; }
}