.cl_socialNav li a.sm-linkedin {
    background: url(../img/icons/icon-linkedin.png) !important;
	background-size: contain !important;
    border-radius: 2px;
	outline:1px solid #212121;
 	 -webkit-filter: grayscale(100%) brightness(70%);
       -moz-filter: grayscale(100%) brightness(70%);
         -o-filter: grayscale(100%) brightness(70%);
        -ms-filter: grayscale(100%) brightness(70%);
            filter: grayscale(100%) brightness(70%); 
}
.cl_socialNav li a.sm-linkedin:hover, .cl_socialNav li a.sm-linkedin:focus, .cl_socialNav li a.sm-linkedin:active {
    background: url(../img/icons/icon-linkedin.png) !important;
	background-size: contain !important;
    border-radius: 2px;
	outline:1px solid #212121;
	 -webkit-filter: grayscale(0%);
       -moz-filter: grayscale(0%);
         -o-filter: grayscale(0%);
        -ms-filter: grayscale(0%);
            filter: grayscale(0%); 
}