body {
   font-family: Arial, sans-serif;
   font-size: 14px;
   line-height: 1.6;
   color: #333;
   margin: 0;
   padding: 20px;
 }
 h1 {
   font-size: 24px;
   text-align: center;
   margin-bottom: 10px;
 }
 .container {
   max-width: 100%;
   background-color: #ddd;
   padding: 10px 20px;
   border-radius: 5px;
 }
 form {
   display: flex;
   flex-direction: column;
 }
 input {
   padding: 10px 15px;
   border: 1px solid #ccc;
   border-radius: 5px;
   margin-bottom: 10px;
 }
 button {
   padding: 10px 30px;
   border: none;
   border-radius: 5px;
   background-color: #008cba;
   color: #fff;
   font-weight: 600;
 }
 table {
   width: 100%;
   position: relative;
 }
 thead {
   background-color: #333;
   color: #fff;
 }
 .thead {
   display: flex;
 }
 .tr {
   display: flex;
 }
 th {
   flex: 1 1 200px;
   padding: 10px;
 }
 .tb {
   flex: 2 2 200px;
   padding: 10px;
 }
 .td {
   padding: 10px;
 }