.tb tr,.tb td{

    border:1px solid;
    padding:5px;
    font-weight:bold;
}
/* .tb th, .tb td { 
    padding: 5px; border: solid 1px #777; 
} */
/* Style the tab */
.tab {
  overflow: hidden;
  border: 1px solid #ccc;
  background-color: #f1f1f1;
}

/* Style the buttons inside the tab */
.tab button {
  background-color: inherit;
  float: left;
  border: none;
  outline: none;
  cursor: pointer;
  padding: 14px 16px;
  transition: 0.3s;
  font-size: 17px;
}

/* Change background color of buttons on hover */
.tab button:hover {
  background-color: #ddd;
}

/* Create an active/current tablink class */
.tab button.active {
  background-color: black;
}

/* Style the tab content */
.tabcontent {
  display: none;
  padding: 6px 12px;
  border: 1px solid #ccc;
  border-top: none;
  background-color:#f8f2da;
  height:auto;
}

/*Vertical tab*/
/* Style the tab */
.tab1 {
  float: left;
  border: 1px solid #ccc;
  background-color: #f1f1f1;
  width: 30%;
  height: 750px;
}

/* Style the buttons inside the tab */
.tab1 button {
  display: block;
  background-color: inherit;
  color: black;
  padding: 22px 16px;
  width: 100%;
  border: none;
  outline: none;
  text-align: left;
  cursor: pointer;
  transition: 0.3s;
  font-size: 17px;
}

/* Change background color of buttons on hover */
.tab1 button:hover {
  background-color: #ddd;
}


/* Create an active/current "tab button" class */
.tab1 button.active {
  background-color: #ccc;
}

/* Style the tab content */
.tabcontent1 {
  float: left;
  padding: 0px 12px;
  border: 1px solid #ccc;
  width: 70%;
  border-left: none;
  height: 750px;
  overflow: scroll;
}
.center {
      display: block;
      margin-left: auto;
      margin-right: auto;
      width: 50%;
}