.header {
position: fixed;
top: 0;
left: 0;
width: 100%; z-index: 999 !important; 
transition: background-color 0.3s ease;
} .header.is-scrolled {
background-color: rgba(255, 255, 255, 0.0) !important; } .header.menu-est-ouvert {
background-color: #ffffff !important;
} .logoo,
.activateurdemenu {
transition: filter 0.3s ease;
} .home .logoo,
.home .activateurdemenu {
filter: brightness(0) invert(1);
} .header.is-scrolled .logoo,
.header.menu-est-ouvert .logoo,
.header.is-scrolled .activateurdemenu,
.header.menu-est-ouvert .activateurdemenu {
filter: none !important;
}