body {
  margin: 0;
  padding: 0;
  font-family: sans-serif;
  background: url(../bg3.jpg);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center center;
  background-attachment: fixed;
}
body, html {
  height: 100%;
  display: grid;
}
.container{
margin:auto;
}

h1 {
  text-decoration: underline;
  -webkit-text-decoration-color: #ffbf07; /* Safari */
  text-decoration-color: #ffbf07;
}
.form-control:focus {
  border-color: #ffbf07;
  box-shadow: 0 0 0 0.2rem rgba(255, 191, 7, 0.25);
}