custom.css

body .wooslider .wooslider-direction-nav a {
display: block;
width: 40px;
height: 40px;
padding: 10px 0 0;
top: auto;
bottom: 2em;
opacity: 1;
}
body .wooslider .wooslider-direction-nav a:before {
line-height: 1em;
padding: .4em 0 0;
font-size: 31px;
background: #ef4444;
color: #fff;
-webkit-border-radius: 3px;
border-radius: 3px;
-moz-background-clip: padding;
-webkit-background-clip: padding-box;
background-clip: padding-box;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
body .wooslider:hover .wooslider-direction-nav .wooslider-next, body .wooslider:hover .wooslider-direction-nav .wooslider-prev {
opacity: 1;
filter: alpha(opacity=@opacity * 100);
}
body .wooslider .wooslider-direction-nav .wooslider-prev {
left: 1.2em;
}
body .wooslider .wooslider-direction-nav .wooslider-next {
right: 1.2em;
}
body .wooslider .wooslider-direction-nav a:hover:before {
background: #eb1515;
}