.formContainer > *:first-child {
  margin-top: 20px;
}

.formContainer > * {
  display: block;
  align-items: center;
  width: 400px;
  max-width: 80vw;
  margin: 10px auto;
  margin-bottom: 20px;
}

.formElementContainer label {
  width: 150px;
  display: block;
  font-weight: bold;
  margin-bottom: 8px;
}

.formElementContainer input {
  box-sizing: border-box;
  width: 100%;
  min-width: 0;
  padding: 10px;
  border: solid 1px rgba(0,0,0,.2);
  border-radius: 2px;
  transition-property: border-color,box-shadow;
  transition: .2s ease-in-out;
}

.formElementContainer span.hint {
  display: block;
  margin-top: 8px;
  color: red;
  opacity: 0;
  transition: .2s opacity;
  user-select: none;
  height: 18.5px;
}

.formElementContainer input.invalid {
  border: solid 1px red;
  box-shadow: red;
}

.formElementContainer input.invalid + span.hint {
  opacity: .5;
}

.formElementContainer button {
  width: 100%;
  min-height: 20px;
  background: rgb(156, 39, 176);
  color: white;
  padding: 10px 0;
  border: none;
  box-shadow: none;
  transition-property: opacity filter;
  transition-duration: .2s;
}

.formElementContainer button[type="submit"] {
  margin-top: 10px;
}

.formElementContainer button[disabled] {
  opacity: .4;
  filter: saturate(.2);
}