.myform { background-color: rgba(204,204,204,.3); border: 1px solid #cecece; }
.form-control { background-color: transparent;   }
.row { border-top: 1px solid #cecece; padding: 5px 0; }

 

.wrapper {
  margin-top: 80px;
  margin-bottom: 80px;
}

.form-signin {
  max-width: 380px;
  padding: 15px 35px 45px;
  margin: 0 auto;
  background-color: #fff;
  border: 1px solid rgba(0, 0, 0, 0.1);
}
.form-signin .form-signin-heading,
.form-signin .checkbox {
  margin-bottom: 30px;
}
.form-signin .checkbox {
  font-weight: normal;
}
.form-signin .form-control {
  position: relative;
  font-size: 16px;
  height: auto;
  padding: 10px;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}
.form-signin .form-control:focus {
  z-index: 2;
}
.form-signin input[type="text"] {
  margin-bottom: -1px;
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}
.form-signin input[type="password"] {
  margin-bottom: 20px;
  border-top-left-radius: 0;
  border-top-right-radius: 0;
}

input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}