header {
    width: 100%;
    -webkit-transition: height 0.6s;
    -moz-transition: height 0.6s;
    -ms-transition: height 0.6s;
    -o-transition: height 0.6s;
    transition: height 0.6s;
}

.primaBarra {
    margin: auto;
    height: 50px;
    width: 1200px;
    background: #63b345;
    margin-top: 15px;
}

#crediti {
    float: right;
    font-size: 14px;
    padding: 4px; 
    background: #004675;
    color: #fff;
    margin-top: 12px;
    cursor: pointer;
}

#titoloOggetto {
    float: left;
    width: 720px;
    font-size: 22px;
    line-height: 50px;
    color: white;
}

#logoGTVP {
    float: left;
    padding-right: 18px;
    height: 30px;
    margin-top: 10px;
}

.secondaBarra {
    margin: auto;
    height: 50px;
    width: 980px;
    background-color: #004675;
    clear: both;
    margin: auto;
    margin-top: 15px;

}

#titolo {
    font-size: 28px;
    color: #fff;
    line-height: 50px;
    width: 100%;
    text-align: center;
    width: 980px;
    margin: auto;
}

@media screen and (max-width: 1200px) {

    .secondaBarra {
        width: 100%;
    }

}