.btn {
	width: 100%;
	height: 100%;
	font-size: 14px;
	font-family: Helvetica, Arial, Sans-Serif;
	color: lightgrey;
	background-color: #24292e;
	word-break: break-all;
}
.btn:hover img {
	-webkit-filter: invert(100%) !important;
}
.header_genotate:hover {
	color: white;
}