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              <body>
  <div class="container">
     <ul class="parking-rules">
      <li class="parking-rule">
        <ul>
          <li> Ambulance Parking Only</li>
          <li> 9pm to 3am </li>
          <li> Mon Thru Fri  </li>
        </ul>
      </li>
      <li class="parking-rule">
        <ul>
          <li> Fire truck Parking Only</li>
          <li>24hrs</li>
          <li> Saturday to Sunday </li>
        </ul>
       </li>
       <li class="parking-rule">
        <ul>
          <li> Car Parking</li>
          <li> 3am to 3pm </li>
          <li> Mon Thru Fri  </li>
        </ul>
       </li>
       <li class="parking-rule">
        <ul>
          <li> Bicycle Parking</li>
          <li> 3pm to 9pm </li>
          <li> Mon Thru Fri  </li>
        </ul>
       </li>
    </ul>
    <section class="drop-zone">
    </section>
    <section class="drag-vehicle">
	    <ul class="vehicles">
			<li>
        <!-- draggable objects must have draggable attribute -->
				<img id="ft" alt="fire truck" src="https://cdn.glitch.com/20f985bd-431d-4807-857b-e966e015c91b%2Ftruck-clip-art-fire-truck4.png?1519011787956">
			</li>
			<li>
				<img id="ambulance" alt="ambulance" src="https://cdn.glitch.com/20f985bd-431d-4807-857b-e966e015c91b%2Fambulance5.png?1519011787610">
			</li>
			<li>
				<img id="car" alt="car" src="https://cdn.glitch.com/20f985bd-431d-4807-857b-e966e015c91b%2Fcar-20clip-20art-1311497037_Vector_Clipart.png?1519011788408">
			</li>
			<li>
				<img id="bike" alt="bicycle" src="https://cdn.glitch.com/20f985bd-431d-4807-857b-e966e015c91b%2Fbicycle-20clip-20art-bicycle3.png?1519011787816">
			</li>
	    </ul>
	</section>
  </div>
</body>

            
          
!
            
              body {
  background-color: #E2E8F3;
  font-size: .8em;
  font-family: "Roboto", Arial, Helvetica, sans-serif;
}

ul li {
  list-style-type: none;
}
img {
  cursor: pointer;
  width: 200px;
}

.container {
  height: 100%;
  display: flex;
  justify-content: space-around;
  align-items: center;
}
.parking-rules {
  padding: 0;
}
.parking-rules  > .parking-rule {
  display: flex;
  justify-content: center;
  text-align: center;
  background: #FDFEFE;
  padding: 16px;
  margin: 12px;
}
.parking-rule:nth-child(n) {
  border: 2px solid #538cff;
}
.parking-rule:nth-child(2n) {
  border: 2px solid #d51c00;
}
.parking-rule:nth-child(3n) {
  border: 2px solid #ffd92e;
}
.parking-rule ul {
  padding: 0;
}
.parking-rule li:first-child {
  font-weight: 700;
  text-transform: uppercase;
}
.drop-zone {
  position: relative;
  width: 300px;
  height: 300px;
  overflow: hidden;
  background: #878787;
  color: white;
  box-shadow: 0 19px 38px rgba(0,0,0,0.30), 0 15px 12px rgba(0,0,0,0.22);
}

.drop-zone {
  display: flex;
  align-items: center;
  justify-content: center;
}

            
          
!
            
              let dragged; //store the object being dragged
window['moment-range'].extendMoment(moment);

const weekdays = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday'];
const parkingRules =  {
  ambulance: {
    days: weekdays,
    times: createRange(moment().set('hour', 21), moment().add(1, 'day').set('hour', 3)) // 9pm to 3am (the next day)
  },
  'fire truck': {
    days: ['Saturday', 'Sunday']
  },
  car: {
    days: weekdays,
    times: createRange(moment().set('hour', 3), moment().set('hour', 15)) // 3am - 3pm
  },
  bicycle: {
    days: weekdays,
    times: createRange(moment().set('hour', 15), moment().set('hour', 21)) // 3pm to 9pm
  }
};

function createRange(start, end) {
  if (start && end) {
    return moment.range(start, end);
  }
}

function onDragStart(event) {
  let target = event.target;
  if (target && target.nodeName === 'IMG') { // If target is an image
    dragged = target;
    // Make it half transparent
    event.target.style.opacity = .3;
  }
}

function onDragEnd(event) {
  if (event.target && event.target.nodeName === 'IMG') {
      // Reset the transparency
      event.target.style.opacity = '';
    dragged = null;
  }
}

function onDragOver(event) {
  // Prevent default to allow drop
  event.preventDefault();
  event.dataTransfer.dropEffect = "move"
}

function onDragLeave(event) {
  event.target.style.background = '';
}

function getDay() {
  return moment().format('dddd'); // format as 'monday' not 1
}

function getHours() {
  return moment().hour();
}

function canPark(vehicle) {
  /* Check the time and the type of vehicle being dragged
   * to see if it can park at this time
   */
  if (vehicle && parkingRules[vehicle]) {
    const rules = parkingRules[vehicle];
    const validDays = rules.days;
    const validTimes = rules.times;
    const curDay = getDay();
    if (validDays) {
      /* If the current day is included on the parking days for the vehicle
       * And if the current time is within the range
       */
      return validDays.includes(curDay) && (validTimes ? validTimes.contains(moment()) : true); 
      /* Moment.range has a contains function that checks
       * to see if your range contains a moment. 
         https://github.com/rotaready/moment-range#contains
        */
    }
  }
  return false;
}

function onDragEnter(event) {
  const target = event.target;
  if (dragged && target) {
    const vehicleType = dragged.alt; // e.g bicycle, ambulance
    if (canPark(vehicleType)) {
      event.preventDefault();
      // Set the dropEffect to move
      event.dataTransfer.dropEffect = 'move';
      /* Change color to green to show it can
       * be dropped 
       */
      target.style.background = '#1f904e';    
     }
    else {
      /* Change color to red to show
       * it can't be dropped. Notice we
       * don't call event.preventDefault() here
       * so the browser won't allow a drop
       * by default
       */
      target.style.backgroundColor = '#d51c00'; 
    }
  }
}

function onDrop(event) {
  const target = event.target;
  if (target) {
    const data = event.dataTransfer.getData('text');
    const dragged = document.getElementById(data);
    const vehicleType = dragged.alt;
    target.style.backgroundColor = '';
    if (canPark(vehicleType)) {
       event.preventDefault();
       // Get the id of the target and add the moved element to the target's DOM
       dragged.style.opacity = '';
       target.appendChild(dragged);
    }
  }
}

const vehicles = document.querySelector('.vehicles');
const dropZone = document.querySelector('.drop-zone');

// Adding event listeners
vehicles.addEventListener('dragstart', onDragStart);
vehicles.addEventListener('dragend', onDragEnd);
dropZone.addEventListener('drop', onDrop);
dropZone.addEventListener('dragenter', onDragEnter);
dropZone.addEventListener('dragleave', onDragLeave);
dropZone.addEventListener('dragover', onDragOver);
            
          
!
999px
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