JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
  <li class="item">
    <div class="item-text-container is-left">
      <span class="item-text">
      Первая
     </span>
    </div>

    <div class="item-text-container is-right">
      <span class="item-text">
        строка
      </span>
    </div>
  </li>

  <li class="item">
    <div class="item-text-container is-left">
      <span class="item-text">
      Имя и отчество
     </span>
    </div>

    <div class="item-text-container is-right">
      <span class="item-text">
        Станислава Владимировна
      </span>
    </div>
  </li>

  <li class="item">
    <div class="item-text-container is-left">
      <span class="item-text">
      Номер полиса выданного
     </span>
    </div>

    <div class="item-text-container is-right">
      <span class="item-text">
        1213223
      </span>
    </div>
  </li>
</ul>

SCSS

$bg-color: lightgreen;
$max-text-width: 160px;

ul {
  max-width: 600px;
  list-style-type: none;
  padding: 10px;
  background-color: $bg-color;
}

.item {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  position: relative;
  
  & + & {
    margin-top: 10px;
  }
  
  &::before {
    position: absolute;
    width: 100%;
    bottom: 4px;
    border-bottom: 1px dashed;
    content: '';
  }
}

.item-text-container {
  position: relative;
  z-index: 2;
  max-width: $max-text-width;
  
  &.is-right {
    text-align: right;
  }
}

.item-text {
  background-color: $bg-color;
}