.flexslider .flex-direction-nav a,
.flexslider .flex-direction-nav a {
display: block; /* I added this line */
}

.flex-direction-nav .flex-next { right: 0 !important; margin-right: -6px; opacity: 0.6 !important;margin-top: -12px; }
.flex-direction-nav .flex-prev { left: 0 !important; opacity: 0.6 !important; /*margin-left: -40px;*/margin-top: -12px; }
.flexslider { width: 100%; margin: 0 auto; }

#slider .flex-direction-nav .flex-next { margin-top: -29px; }
#slider .flex-direction-nav .flex-prev { margin-top: -29px; }

#carousel .flex-direction-nav .flex-next { margin-top: -18px; }
#carousel .flex-direction-nav .flex-prev { margin-top: -18px; }

/*  carousel  */