.parent-container {
  display: flex;                
  justify-content: center;       
  align-items: center;           
  min-height: 100vh;            
}

.centered-section {
  max-width: 600px;             
  width: 100%;
}

.border {
  border: 2px solid #007bff; 
  
  display: inline-block;     
  
  padding: 10px;             
}