.sidebar {
	position: fixed;
	top: 0;
	left: 0;
	height: 100%;
	width: 200px;
	background-color: #f5f5f5;
	overflow-x: hidden;
	padding-top: 20px;
}

.sidebar ul {
	list-style-type: none;
	margin: 0;
	padding: 0;
}

.sidebar li {
	padding: 8px 16px;
}

.sidebar li a {
	display: block;
	color: #000;
	padding: 8px 16px;
	text-decoration: none;
}

.sidebar li a:hover {
	background-color: #ddd;
}

.content {
	margin-left: 200px;
	padding: 1px 16px;
	height: 1000px;
}

.button {
    display: inline-block;
    padding: 10px 20px;
    background-color: #337ab7;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-family: Arial, sans-serif;
}

th {
  background-color: #f2f2f2;
  color: #333;
  font-weight: bold;
  padding: 10px;
  text-align: left;
  border-bottom: 1px solid #ccc;
}

td {
  padding: 10px;
  border-bottom: 1px solid #ccc;
}

tr:nth-child(even) {
  background-color: #f9f9f9;
}

tr:hover {
  background-color: #e6e6e6;
}

.error {
      color: red;
}

.corner-buttons {
      position: absolute;
      top: 20px;
      right: 20px;
    }