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HTML 

              
                <!DOCTYPE html>
<html lang="en">
<head>
    <link rel="stylesheet" href="./kanban.css">
    <title>Kanban Board</title>
</head>
<body>
    <div class="container">
        <div class="kanban-heading">
            <strong class="kanban-heading-text">Kanban Board</strong>
        </div>
        <div class="kanban-board">
            <div class="kanban-block" id="todo" ondrop="drop(event)" ondragover="allowDrop(event)">
                <strong>To Do</strong>
                <div class="task-button-block">
                    <button id="task-button" onclick="createTask()">Create new task</span>
                </div>
                <div class="task" id="task1" draggable="true" ondragstart="drag(event)">
                    <span>Task 1</span>
                </div>
                <div class="task" id="task2" draggable="true" ondragstart="drag(event)">
                    <span>Task 2</span>
                </div>
                <div class="task" id="task3" draggable="true" ondragstart="drag(event)">
                    <span>Task 3</span>
                </div>
                <div class="task" id="task4" draggable="true" ondragstart="drag(event)">
                    <span>Task 4</span>
                </div>
                <div class="task" id="task5" draggable="true" ondragstart="drag(event)">
                    <span>Task 5</span>
                </div>
                <div class="task" id="task6" draggable="true" ondragstart="drag(event)">
                    <span>Task 6</span>
                </div>
            </div>
            <div class="kanban-block" id="inprogress" ondrop="drop(event)" ondragover="allowDrop(event)">
                <strong>In Progress</strong>
            </div>
            <div class="kanban-block" id="done" ondrop="drop(event)" ondragover="allowDrop(event)">
                <strong>Done</strong>
            </div>
            <div class="create-new-task-block" id="create-new-task-block">
                <strong>New Task</strong>
                <span class="form-row">
                    <label class="form-row-label" for="task-name">Task</label>
                    <input class="form-row-input" type="text" name="task-name" id="task-name">
                </span>
                <span class="form-row">
                    <label class="form-row-label" for="task-name">Description</label>
                    <textarea class="form-row-input" name="task-description" id="task-description" cols="70" rows="10"></textarea>
                </span>
                <span class="form-row">
                    <label class="form-row-label" for="task-name">Status</label>
                    <select class="form-row-input" name="task-status" id="task-status">
                        <option value="todo">To Do</option>
                        <option value="inprogress">In Progress</option>
                        <option value="done">Done</option>
                    </select>
                </span>
                <span class="form-row-buttons">
                    <button id="edit-button" onclick="editTask()">Edit</span>
                    <button id="save-button" onclick="saveTask()">Save</span>
                    <button id="cancel-button" onclick="createTask()">Cancel</span>
                </span>
            </div>
        </div>
    </div>
</body>
</html>
!

CSS 

              
                body {
  background-color: black;
}

.container {
  width: 70%;
  min-width: 50%;
  margin: auto;
  display: flex;
  flex-direction: column;
}

.kanban-heading {
  display: flex;
  flex-direction: row;
  justify-content: center;
  font-family: sans-serif;
}

.kanban-board {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  font-family: sans-serif;
}

.kanban-heading-text {
  font-size: 1.8rem;
  background-color: tomato;
  padding: 0.8rem 1.7rem;
  border-radius: 0.5rem;
  margin: 1rem;
}

.kanban-block,
.create-new-task-block {
  padding: 0.6rem;
  width: 30.5%;
  min-width: 14rem;
  min-height: 4.5rem;
  border-radius: 0.3rem;
}

#todo {
  background-color: #fec6d1;
}

#inprogress {
  background-color: #ffaf00;
  /* display: none; */
}

#done {
  background-color: #018b01;
  /* display: none; */
}

.task {
  background-color: white;
  margin: 0.2rem 0rem 0.3rem 0rem;
  border: 0.1rem solid black;
  border-radius: 0.2rem;
  padding: 0.5rem 0.2rem 0.5rem 2rem;
}

#task-button {
  margin: 0.2rem 0rem 0.1rem 0rem;
  background-color: white;
  border-radius: 0.2rem;
  width: 100%;
  border: 0.25rem solid black;
  padding: 0.5rem 2.7rem;
  border-radius: 0.3rem;
  font-size: 1rem;
}

.create-new-task-block {
  display: none;
  /* display: flex; */
  background: #ffaf00;
  width: 64.4%;
  flex-direction: column;
}

.form-row {
  display: flex;
  flex-direction: row;
  margin: 0.2rem;
}

.form-row-label {
  width: 15%;
  padding: 0.2rem;
  padding-right: 0.5rem;
  border: 0.1rem solid black;
  border-right: 0;
  border-radius: 0.2rem 0rem 0rem 0.2rem;
}

.form-row-input {
  border: 0.1rem solid black;
  border-radius: 0rem 0.2rem 0.2rem 0rem;
  width: 85%;
}

textarea {
  resize: none;
}

.form-row-buttons {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  margin: 0.2rem;
}

#edit-button,
#save-button,
#cancel-button {
  margin: 0.2rem 0rem 0.1rem 0rem;
  background-color: white;
  border-radius: 0.2rem;
  width: 49.2%;
  border: 0.25rem solid black;
  padding: 0.5rem 2.7rem;
  border-radius: 0.3rem;
  font-size: 1rem;
}

#edit-button {
  display: none;
}
!

JS 

              
                function drag(ev) {
            ev.dataTransfer.setData("text", ev.target.id);
        }

        function allowDrop(ev) {
            ev.preventDefault();
        }

        function drop(ev) {
            ev.preventDefault();
            var data = ev.dataTransfer.getData("text");
            ev.currentTarget.appendChild(document.getElementById(data));
        }

        function createTask(){
            var x = document.getElementById("inprogress");
            var y = document.getElementById("done");
            var z = document.getElementById("create-new-task-block");
            if (x.style.display === "none") {
                x.style.display = "block";
                y.style.display = "block";
                z.style.display = "none";
            } else {
                x.style.display = "none";
                y.style.display = "none";
                z.style.display = "flex";
            }
        }

        function saveTask(){
            // var saveButton = document.getElementById("save-button");
            // var editButton = document.getElementById("edit-button");
            // if (saveButton.style.display === "none") {
            //     saveButton.style.display = "block";
            //     editButton.style.display = "none";
            // } else{
            //     saveButton.style.display = "none";
            //     editButton.style.display = "block";
            // }

            var todo = document.getElementById("todo");
            var taskName = document.getElementById("task-name").value;
            todo.innerHTML += `
            <div class="task" id="${taskName.toLowerCase().split(" ").join("")}" draggable="true" ondragstart="drag(event)">
                <span>${taskName}</span>
            </div>
            `
        }

        function editTask(){
            var saveButton = document.getElementById("save-button");
            var editButton = document.getElementById("edit-button");
            if (saveButton.style.display === "none") {
                saveButton.style.display = "block";
                editButton.style.display = "none";
            } else{
                saveButton.style.display = "none";
                editButton.style.display = "block";
            }
        }
!
999px

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