barebones/scss/base/_forms.scss

input, 
select, 
textarea {
  background-color: $base-background-colour;
  border: solid 1px $base-colour;
  color: $base-colour;
  display: inline-block;
  font: inherit;
  line-height: $base-spacing-unit;
  padding: ($base-spacing-unit / 4);
  width: 100%;
}

input[type="checkbox"], 
input[type="radio"] {
  background: transparent;
  border: 0;
  width: auto;
}

label {
  display: block;
  font-weight: bold;
}

select {
  height: ($base-spacing-unit * 1.5);
}

textarea {
  min-height: ($base-spacing-unit * 4);
}

.form__group {
  margin-bottom: $base-spacing-unit;
  .form__group__controls {
    @extend .clearfix;
    label {
      font-weight: normal;
    }
    &.form__group__controls--inline {
      label {
        display: inline-block;
      }
    }
  }
}