i.fa-sort				{	cursor:pointer;	opacity:0.4;	}
i.fa-sort:hover			{					opacity:0.7;	}
i.fa-sort-down			{	cursor:pointer;	opacity:0.4;	}
i.fa-sort-down:hover	{					opacity:0.7;	}
i.fa-sort-up			{	cursor:pointer;	opacity:0.4;	}
i.fa-sort-up:hover		{					opacity:0.7;	}

input[ type = text ]::placeholder		{	opacity:0.0;	}
input[ type = text ]:focus::placeholder	{	opacity:0.5;	}