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background-repeat:no-repeat;
background-image:url(https://www.francecybersecurity.fr/wp-content/uploads/2015/10/maison-de-la-chimie-facade-2.jpg);
background-position:50% 50%;
background-attachment:fixed;
}
.avia-section.av-9cnf0r-b93dd15f33488d1022829ba3eaddf872 .av-section-color-overlay{
opacity:0.3;
background-color:#000000;
}