body{
    font-family: 'Open Sans' !important;
}
.h1, .h2, .h3, .h4, .h5, .h6, h1, h2, h3, h4, h5, h6{
    font-family: 'Open Sans';
    font-weight: 800;
}
button, .nav-main-link{
    font-family: 'Open Sans';
}
.content-header .nav-main-horizontal .nav-main-link{
    font-family: 'Open Sans';
}