.wrapper {
  width: 600px;
  margin: 0 auto;
  padding-top: 1px;
}

.slider {
  margin: 0px 0;
  width: 600px; /* Update to your slider width */
  height: 320px; /* Update to your slider height */
  position: relative;
  overflow: hidden;
}

.slider li {
  display: none;
  position: center;
  top: 0; 
  left: 0; 
}