Additional css - gallery and fixed navigation with Astra

.css

.wp-block-gallery img {
	transition: 1s;
}

.wp-block-gallery:hover img {
	transform: scale(.95);
	filter: grayscale(100%);
}

.wp-block-gallery img:hover {
	filter: grayscale(0%);
	transform: scale(1);
}

.ast-theme-transparent-header #masthead {
	position: fixed;
	background: rgba(0,0,0,0.4);
}