.partner_lists::-webkit-scrollbar {
  width: 13px;
  height: 13px;
}

.partner_lists::-webkit-scrollbar-track {
  background: #202743;
}

.partner_lists::-webkit-scrollbar-thumb {
  background: #364163;
}

.partner_lists::-webkit-scrollbar-button:start:decrement,
.partner_lists::-webkit-scrollbar-button:end:decrement {
  display: block;
}

.partner_lists::-webkit-scrollbar-button:start:decrement
{
  background-image: url(./img/03_pic_scroll_up.png); 
}

.partner_lists::-webkit-scrollbar-button:end:decrement
{
  background-image: url(./img/03_pic_scroll_down.png);
}