:root {
  --input-padding-x: .75rem;
  --input-padding-y: .75rem;
}
#od, #odm {border: 1px solid #fff;
  border-radius: 20px 0px 0px 20px;}

#do, #dom {border: 1px solid #fff;
    border-radius: 0px 20px 20px 0px;}

.form-control:focus {
  color: #fff;
  background-color:transparent;
  border-color: transparent;
  outline: 0;
  box-shadow: 0 0 0 .2rem rgba(0,123,255,.25);
}

.form-params {
  width: 100%;
  max-width: 420px;
  padding: 15px;
  margin: auto;
}

.form-label-group {
  position: relative;
  margin-bottom: 1rem;
  width: 50%;
}

.form-label-group > input,
.form-label-group > label {
  padding: var(--input-padding-y) var(--input-padding-x);
  background:transparent;

}

.form-label-group > label {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  width: 100%;
  margin-bottom: 0; /* Override default `<label>` margin */
  line-height: 12px;
  color: #fff;
  border: 1px solid transparent;
  border-radius: .25rem;
  transition: all .1s ease-in-out;
}

.form-label-group input::-webkit-input-placeholder {
  color: transparent;
}
z
.form-label-group input:-ms-input-placeholder {
  color: transparent;
}

.form-label-group input::-ms-input-placeholder {
  color: transparent;
}

.form-label-group input::-moz-placeholder {
  color: transparent;
}

.form-label-group input::placeholder {
  color: transparent;
}

.form-label-group input:not(:placeholder-shown) {
  padding-top: calc(var(--input-padding-y) + var(--input-padding-y) * (2 / 3));
  padding-bottom: calc(var(--input-padding-y) / 3);
  background: transparent!important;
  color: #fff;
}

.form-label-group input:not(:placeholder-shown) ~ label {
  padding-top: calc(var(--input-padding-y) / 3);
  padding-bottom: calc(var(--input-padding-y) / 3);
  font-size: 12px;
  color: #fff;
  background: transparent!important;
}