order returns 1px on all sides,
                  so we need the next declaration for the width/height to match: */
  box-sizing: border-box;
  width:300px;
  height:80px;
}

.grid {
  display: inline-grid;
  grid: 80px / 300px;
  place-items: stretch;
  border:1px solid;
}

.zero { grid:0/0; }
.zero input { width:0; height:0; }

.none input { -webkit-appearance:none; }

    </style>
</head>
<body>

<div class="grid"><input type=range></div>
<br>
<div class="grid zero"><input type=range></div>
<br>
<div cla