body {
    margin: 0;
    overflow: hidden;
    font-family: sans-serif;
    font-size: 14px;
}

* {
    box-sizing: border-box;
}

/* Preview sizing */
img {  
    width: 100%;
    height: 100%;
    object-fit: contain
}

/* Create columns that float next to each other */
.column {
    padding: 10px;
    height: 100%;
}

.left, .right {
  background-color: #f4f4f4;
}

.left{
    width: 250px;
    float: left;
}

.Right{
    width: 250px;
    float: right;
}

.middle {
  margin-left: 250px;
  margin-right: 250px;
  background-color: #d3d3d3;
}

/* Clear floats after the columns */
.row:after {
    content: "";
    display: table;
    clear: both;
}

/* Columns within panels */

.left-col {
    float:left;
}
.right-col {
    float:right;
}
.clearfix::after {
    content: "";
    clear: both;
    display: table;
}