<div class="main_stage">
    <div class="h">Анализируем</div>
    <div class="h">Прототипируем</div>
    <div class="h">Дизайним</div>
    <div class="h">Программируем</div>
    <div class="h">Тестируем</div>
    <div class="h">Релизим</div>
</div>

.main_stage {
  display: inline-flex;
  padding-right: 40px;
  border-right: 1px solid #000;
}

.main_stage .h:last-child {
  padding-right: 55px;
  border-right: unset;
}

.main_stage:hover .h:last-child {
  padding-right: 15px;
}

.h {
  user-select: none;
  cursor: pointer;
  opacity: 1;
  background: #ffffff;
  color: #000;
  font-weight: bold;
  font-family: Tahoma, sans-serif;
  margin-right: -40px;
  border: 1px solid black;
  border-top-left-radius: 40px;
  border-bottom-left-radius: 40px;
  padding: 15px;
  padding-right: 15px;
  display: inline-block;
  transition: padding .4s ease;
}

.h:hover {
  background: #f2a456;
  padding-right: 55px !important;
}