Blanket

<div class="row blanket">
  <div class="container bg-overlay">
     <div class="row text-center">
         <br><br>
            </div>
   </div>
</div>

   
      .blanket .bg-overlay {
         background: linear-gradient(#4f5e70, #4f5e70) center center / cover no-repeat;
         color: rgb(255, 255, 255);
         height: 343px;
         padding-top: 50px;
         opacity: 54%;
     }