JSFiddle - React, Tailwind, and code Playground

by unni2003pj

HTML

<div class="wrapper">
      <div class="main-content">
        <div class="header">
          <button class="add-row" onclick="addRow()">Add Row +</button>
          <button class="add-column" onclick="addCol()">Add Column +</button>
        </div>
        <div class="content-box" id="main-container" >          
            <div class="container" id="contentBox" >
              
            </div>
            <p>
            NB: To add row box, please click add row button.
to add column -> click add column button and select any added row box

            </p>
        </div>
      </div>
    </div>

CSS

* {
	box-sizing: border-box;
}

.wrapper {
	float: left;
	width: 100%;
	height: 100vh;
}

body {
	padding: 0;
	margin: 0;
	position: relative;
}
.main-content {
	float: left;
	width: calc(100%);
	height: 100%;
	background: #fafafa;
}
.header {
	height: 60px;
	display: flex;
	align-items: center;
	justify-content: flex-end;
	padding: 0 20px;
}
.content-box {
	width: 100%;
	height: calc(100% - 60px);
	padding: 15px;
}
button {
	background: #000;
	border: 0;
	padding: 0 20px;
	height: 40px;
	margin-left: 10px;
	font-weight: 600;
	color: white;
	cursor: pointer;
}
.row-block {
	width: 100%;
	border: 2px dashed #848484;
	padding: 20px;
	display: -webkit-box;
	display: -ms-flexbox;
	display: flex;
	-ms-flex-wrap: wrap;
	flex-wrap: wrap;
	margin-bottom: 20px;

}
.row-block:hover {
	border-color: #2654d1;
}
.column-block {
	position: relative;
	width: 100%;
	min-height: 1px;
	padding-right: 10px;
	padding-left: 10px;
	margin: 0 10px;
	-ms-flex-preferred-size: 0;
	flex-basis: 0;
	-webkit-box-flex: 1;
	-ms-flex-positive: 1;
	flex-grow: 1;
	max-width: 100%;
	border: 2px dashed #848484;

	background-color: #dedede;
	padding: 20px;
}
.column-block:first-child {
	margin-left: 0;
}
.column-block:last-child {
	margin-right: 0;
}
.row-block .each-draggable-item {
	position: relative;
	width: 100%;
	min-height: 1px;
	padding-right: 10px;
	padding-left: 10px;
	-ms-flex-preferred-size: 0;
	flex-basis: 0;
	-webkit-box-flex: 1;
	-ms-flex-positive: 1;
	flex-grow: 1;
	max-width: 100%;
	margin-bottom: 0;
}
.gu-mirror {
	cursor: grabbing;
}
.container .ex-moved {
	background-color: #e74c3c;
}
.container.ex-over {
	background-color: rgba(255, 255, 255, 0.3);
}
.handle {
	background-color: rgba(0, 0, 0, 0.4);
	cursor: move;
	margin-right: 5px;
	padding: 0 5px;
}
.column-block h5 {
	margin: 0;
}
/* .gu-mirror {
	cursor: move;
	cursor: -webkit-grabbing;
	cursor: -moz-grabbing;
	cursor: grabbing;
	position: fixed !important;
	margin: 0 !important;
	z-index: 9999 !important;
	opacity:...

JavaScript

// Add Column
  
var i=0;
var j=0;

let newColNode = null;

function addRow() {    
    const row = document.createElement('div');
    row.className = 'bloc';
    row.id = "b" + ++i;

    document.getElementById('contentBox').append(row);

    row.addEventListener('click', function (event) {
        console.log(newColNode)
        console.log(row)
        if(newColNode != null ) 
        row.appendChild(newColNode);        
        newColNode = null
    });
}
  
// Column Addition

function addCol() {
    const col = document.createElement('div');
    col.className = 'bloc--inner';
    col.id = "c" + ++j;
    newColNode = col;
}