.border {
  text-align: center;
}
.tr {
  text-align: center;
}
.main_div {
  padding: 10px;
  margin: 10px;
  box-shadow: o 4px 8px rgba(0, 0, 0, 1);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 80vh;

  min-height: 100vh;
  width: 100%;
  background-image:
    linear-gradient(rgba(4, 9, 30, 0.7), rgba(4, 9, 30, 0.7)),
    url(./img/meobay.jpg);
  background-position: center;
  background-size: cover;
  position: relative;
}

.table2 {
  text-align: center;
}
/*FORM*/
.bieumau {
  background: #ffffff;
  padding: 25px 30px;
  width: 350px;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
  margin: 10px;
}

.bieumau label {
  font-weight: bold;
  color: #333;
}

.bieumau input[type="text"],
.bieumau input[type="password"],
.bieumau input[type="file"] {
  width: 100%;
  padding: 8px;
  margin-top: 5px;
  border: 1px solid #ccc;
  border-radius: 4px;
}

.bieumau input[type="radio"],
.bieumau input[type="checkbox"] {
  margin-right: 5px;
  margin-top: 8px;
}

.bieumau button {
  padding: 8px 15px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-weight: bold;
}

.bieumau button[type="submit"] {
  background-color: #4caf50;
  color: white;
  margin-right: 10px;
}

.bieumau button[type="reset"] {
  background-color: #f44336;
  color: white;
}

.bieumau button:hover {
  opacity: 0.85;
}

.body_form {
  font-family: Arial, sans-serif;
  margin: 0;
  background-color: #f4f4f4;
  display: flex;
  justify-content: center;
  align-items: center;
}