body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
}

.container {
  display: flex;
}

.sidebar {
  width: 200px;
  background-color: #f3f3f3;
  padding: 20px;
  height: 100vh;
  box-sizing: border-box;
}

.logo h2 {
  margin: 0;
  text-align: center;
  padding-bottom: 20px;
  border-bottom: 2px solid #000;
}

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

.sidebar nav ul li {
  padding: 10px 0;
}

.sidebar nav ul li a {
  text-decoration: none;
  color: black;
  display: block;
  padding: 10px;
  background-color: #ddd;
  border-radius: 4px;
}

.sidebar nav ul li.active a {
  background-color: #bbb;
}

.main-content {
  flex: 1;
  padding: 20px;
}

.main-content header {
  text-align: right;
}

.customer-table {
  margin-top: 20px;
}

.customer-table table {
  width: 100%;
  border-collapse: collapse;
}

.customer-table th,
.customer-table td {
  padding: 10px;
  border: 1px solid #ddd;
  text-align: left;
}

.customer-table th {
  background-color: #f3f3f3;
}

.view {
  background-color: yellow;
  border: none;
  padding: 10px 15px;
  cursor: pointer;
  margin-right: 10px;
}