With colors

by PlayboyZP

HTML

<div class="wrap">
  <div class="left"><span>Размещение рекламы</span></div>
  <div class="right"><span>1300 руб</span></div>
</div>

CSS

.wrap{
  display: flex;
  justify-content: center;
  background: green;
  height: 200px;
}
.left{
  display: flex;
  align-items: center;
  flex-grow: 1;
  text-align: right;
}
.left span{
 width: 100%;
 background: rgba(0,0,0,.5);
 padding: 10px 20px ;
 color: #fff;
}
.right{
  display: flex;
  flex-grow: 1;
  margin-left: 0; /*Отступ*/
}
.right span{
  align-self: center;
  background: rgba(0,0,0,.5);
  padding: 10px;
  border-radius: 10px;
  color: white;
}