body {
  font-family: Arial, sans-serif;
  background-color: #F2F2F2;
  padding: 20px;
}

h2 {
  text-align: center;
  margin-top: 250px;
  margin-bottom: 250px;
}

p {
  text-align: center;
  font-size: 18px;
  margin-bottom: 50px;
}

button {
  display: block;
  margin: 0 auto;
  background-color: #7fcf69;
  color: #eff4ef;
  padding: 10px 20px;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  text-align: center;
  justify-content: center;
  margin-bottom: 40px;
}

button:hover {
  background-color: #7fcf69;
}

.pr-button {
  display: inline-block;
  padding: 5px 10px;
  font-size: small;
  background-color: #7bc567;
  color: #fff;
  border: none;
  border-radius: 8px;
  text-align: right;
  text-decoration: none;
  cursor: pointer;
  margin-bottom: 10px;
}

.pr-button:hover {
  background-color: #7fcf80;
}

.pr-button:focus {
  outline: none;
}

select {
  display: block;
  margin: 0 auto;
  font-size: 16px;
  padding: 5px;
  margin-bottom: 40px;
}

table {
  font-family: Arial, sans-serif;
  font-size: 14px;
  border-collapse: collapse;
  margin: 0 auto;
  margin-bottom: 40px;
}

th, td {
  padding: 10px;
  border: 1px solid #ddd;
}

th {
  background-color: #7fcf69;
  font-weight: bold;
  text-align: center;
}

tr:hover {
  background-color: #f5f5f5;
}

.dropdowns-container {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 40px;
}

.dropdown-container {
  display: flex;
  align-items: center;
  margin-right: 20px;
}

.dropdown-container label {
  margin-right: 5px;
}

#btn {
  margin-top: 30px;
  border-radius: 20px;
}

.tab-container {
  border: 1px solid #ccc;
  border-radius: 5px;
}

.tab-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px;
  border-bottom: 1px solid #ccc;
}

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

.markdown-body {
  box-sizing: border-box;
  min-width: 200px;
  max-width: 980px;
  margin: 0 auto;
  padding: 45px;
  text-align: left;
}

#back-to-top-button {
  display: none;
  position: fixed;
  bottom: 20px;
  right: 20px;
  padding: 10px 20px;
  background-color: #555;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

#back-to-top-button:hover {
  background-color: #333;
}

.sortable-header {
  cursor: pointer;
}