.centering{ 
   float:none;
   margin: 0 auto;
}

tr:nth-child(even) {
    background-color: #f2f2f2;
}

th, td {
    padding: 7px;
     word-break:break-all;
    min-width:13rem;
}

table{
  border-color:#f9f9f9;
}

.login {
  max-width: 400px;
  padding: 20px;
  margin: 0 auto;  
}
body {
   padding-bottom:70px;
}