    height: 50px;
          margin: 30px 0;
        }

        .container {
          width: 100%;
          width: -moz-available;          /* WebKit-based browsers will ignore this. */
          width: -webkit-fill-available;  /* Mozilla-based browsers will ignore this. */
          width: fill-available;
          left: auto;
          right: auto;        
        }

        .content {          
          flex-direction: column;          
        }

        .box {
          width: auto;
          height: