.custom-sticky-header{
position: fixed;
top: -100px;
left: 0;
transition: 0.4s;
z-index: 9999;
-webkit-box-shadow: 0px 0px 4px 0px rgba(0,0,0,0.2);
-moz-box-shadow: 0px 0px 4px 0px rgba(0,0,0,0.2);
box-shadow: 0px 0px 4px 0px rgba(0,0,0,0.2);
}
.custom-sticky-header.show{
top: 0;
transition: 0.4s;
}