h2>     {
    width: 900px;
    color: #808080;
    font-family: Geneva,Arial,Helvetica,sans-serif;
}

.popup {
    height: 60%;
}

#calendar {
width: 100%;
text-align: center;
}

#calendar a {
    text-decoration: none;
    color: #666;
    margin: 3%

}
.container {
  margin: 50px auto;
  width: 100%;
}

.month_name {
    display: inline-block;
    width: 15%
}

  table.managers_table {
    /*border-collapse:collapse;*/
      width: 900px;
  }

  table.managers_table td {
    border: 1px solid gray;
    width: 110px;
    height: 110px;
    background-color:silver;
    cursor: pointer;
    vertical-align: top;
    padding: 5px;
  }

  table.managers_table td.weekend {
    background-color:orange;
  }
  
  table.managers_table td div.num_day {
    text-align: right;
    font-weight: bold;
    margin-bottom: 15px;
  }

a {
  text-decoration: none;
  color: black;
}