html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

html {
  position: relative;
  min-height: 100%;
}

body {
/*    margin-bottom: 60px;*/
    font-family: Arial, sans-serif;
    background-color: #00a2ff27;
    height: 100%;
    display: flex; /* ใช้ flexbox */
    flex-direction: column; /* ตั้งค่าการจัดตำแหน่งเป็นแนวตั้ง */
    min-height: 100vh; /* กำหนดความสูงให้เต็มหน้าจอ */
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
  color: var(--bs-secondary-color);
  text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
  text-align: start;
}