.todo-app {
    position: relative;
    width: 400px;
    padding: 30px 30px 15px;
    background: white;
    border: 1px solid;
    border-color: #dfdcdc #d9d6d6 #ccc;
    border-radius: 2px;
    -webkit-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    margin: 20px auto;
  }
  
  .todo-app:before, .todo-app:after {
    content: '';
    position: absolute;
    z-index: -1;
    height: 4px;
    background: white;
    border: 1px solid #ccc;
    border-radius: 2px;
  }
  
  .todo-app:after {
    bottom: -3px;
    left: 0;
    right: 0;
    -webkit-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  }
  
  .todo-app:before {
    bottom: -5px;
    left: 2px;
    right: 2px;
    border-color: #c4c4c4;
    -webkit-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
  }
  
  .todo-app h1 {
    font-size: 52px;
    line-height: 52px;
    margin-bottom: 30px;
    font-weight: bold;
    text-align: center;
    letter-spacing: -0.8px;
  }
  
  .todo-add {
    margin-bottom: 20px;
  }