.main_text {
	font-family: Arial, Helvetica, sans-serif;
	font-weight: bold;
}
.video_text {
	font-family: Arial, Helvetica, sans-serif;
}
.main_titles {
	font-family: Arial, Helvetica, sans-serif;
	font-size: large;
	font-weight: bold;
}
.video_titles {
	font-family: Arial, Helvetica, sans-serif;
	font-size: medium;
	font-weight: bold;
}