body {
  display: flex;
  margin: 30px 0 0 0;
  padding: 0;
}

/* Group css */
.todoListContainer {
  margin-left: 30px;
  display: inline-block;
  width: 25%;
}

.todoListContainer:last-of-type {
  margin-right: 30px;
}

.todoListContainer .title {
  background-color: blue;
  text-align: center;
  padding: 10px;
  color: #fff;
}

/* Todo css */
.todoContainer {
  margin-bottom: 5px;
  display: flex;
  justify-content: stretch;
  background-color: #eee;
  width: 100%;
}

/* Input elements */
.inputContainer {
  display: flex;
  margin-top: -5px;
}
.inputContainer textarea{
  width: 100%;
}

.todoContainer .left, .todoContainer .right {
  display: inline-block;
  height: 100%;
  background-color: #eee;
  margin: 10px;
  align-self: center;
  cursor: pointer;
}

.todoContainer .center {
  width: 100%;
  margin: 10px 0;
}

#undo {
  position: fixed;
  bottom: 0;
  right: 0;
  padding: 20px;
}