<div class="table-wrapper">
<div class="table">
<div class="col indigo">
<div class="item">Item</div>
<div class="item">Item</div>
<div class="item">Item</div>
<div class="item">Item</div>
</div>
<!-- your code table --->
</div>
</div>
/**
** your code css
**/
.col:first-child {
position: sticky;
z-index: 5;
left: 0;
}
.table-wrapper {
max-width: 100%;
overflow-y: hidden;
overflow-x: auto;
}