app/assets/stylesheets/_overrides.scss
.form-control,
.form-wrapper input[type=text],
.form-wrapper input[type=email],
.form-wrapper input[type=password],
.form-wrapper select,
.form-wrapper textarea {
font-size: 12px;
}
.form-inline > * {
margin: 5px 3px;
&:first-child {
margin-left: 0;
}
&:last-child {
margin-right: 0;
}
}