anchor.diff:      <div class="form-container">
         <h1>Edit event</h1>
         <form action="/edit-event" method="POST" id="eventform" name="eventform">
  -        <input type="hidden" id="key-value" value='${key}'>
  +        <input type="hidden" id="key-value" value="${key}">
           <div class="form-section">
             <div class="form-label">
               <label for="event-name">*Event name:</label>
             </div>
             <div class="form-input">
               <input type="text" id="event-name" name="event-name" required><br>
  -            <input type="hidden" id="name-value" value='${name}'>
  +            <input type="hidden" id="name-value" value="${name}">
             </div>
           </div>
           <div class="form-section">
  
positive.code:           </div>
            <div class="form-input">
              <input type="time" id="end-time" name="end-time"><br>
              <input type="hidden" id="end-value" value='${end}'>
            </div>
          </div>
          <div class="form-section">
  
negative.code:           </div>
            <div class="form-input">
              <input type="time" id="start-time" name="start-time" required><br>
              <input type="hidden" id="start-value" value="${start}">
            </div>
          </div>
          <div class="form-section">
  