Simple Custom CSS

I put this css in the plug-in then I get a fatal error message. I am using Baskerville theme. Any help?

*/ 

.page .entry-title {
	display: none;
}

.site-title a {
	color: #F0FFFF;
}

.site-description {
	color: #F0FFFF;
}

.titletag . {
	color: red;
	font: 12px tahoma;
}

.page .post-header {
	display: none;
}

@media screen and (max-width: 400px) {
	.contact-form {
		width: 200px;
	}
}