Reset for form elements written in SCSS

form-reset-helpers.scss

/* ----------------------------------------------------------------------------------------------------

SCSS Form Reset Helpers - Forked from: https://gist.github.com/anthonyshort/552543

Intended usage:
- MIXINS: for very specific use cases, when you dont want to reset absolutly all the forms, very verbose output.
- PLACEHOLDER SELECTORS: use as extending classes. Less verbose, more generic overrides.

A couple of things to watch out for:

- IE8: If a text input doesn't have padding on all sides or none the text won't be centered.
- The default border sizes on text inputs in all UAs seem to be slightly different. You're better off using custom borders.
- You NEED to set the font-size and family on all form elements
- Search inputs need to have their appearance reset and the box-sizing set to content-box to match other UAs
- You can style the upload button in webkit using ::-webkit-file-upload-button
- ::-webkit-file-upload-button selectors can't be used in the same selector as normal ones. FF and IE freak out.
- IE: You don't need to fake inline-block with labels and form controls in IE. They function as inline-block.
- By turning off ::-webkit-search-decoration, it removes the extra whitespace on the left on search inputs

----------------------------------------------------------------------------------------------------*/

@mixin form-reset-general {
  display: inline-block;
  margin: 0;
  border: 0;
  padding: 0;
  width: auto;
  vertical-align: middle; // IE6,IE7
  white-space: normal;
  line-height: inherit;
  background: none;

  /* Browsers have different default form fonts */
  color: inherit;
  font-size: inherit;
  font-family: inherit;
}

%form-reset-general {
  @include form-reset-general;
}

@mixin form-reset-special-box-sizing {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

%form-reset-special-box-sizing {
  @include form-reset-special-box-sizing;
}

@mixin form-reset-input-specific {
  &:focus {
    outline: 0;
  }

  &[type=checkbox],
  &[type=radio] {
    width: 13px;
    height: 13px;
  }

  /* Make webkit render the search input like a normal text field */
  &[type=search] {
    -webkit-appearance: textfield;
    -webkit-box-sizing: content-box;
  }

  /* Turn off the recent search for webkit. It adds about 15px padding on the left */
  @at-root {
    ::-webkit-search-decoration {
      display: none;
    }
  }

  /* Fix IE7 display bug */
  &[type="reset"],
  &[type="button"],
  &[type="submit"] {
    overflow: visible;
  }
}

@mixin form-reset-input {
  @include form-reset-general;
  @include form-reset-input-specific;

  /* These elements are usually rendered a certain way by the browser */
  &[type=reset],
  &[type=button],
  &[type=submit],
  &[type=checkbox],
  &[type=radio] {
    @include form-reset-special-box-sizing;
  }
}

%form-reset-input {
  @extend %form-reset-general;
  @include form-reset-input-specific;

  /* These elements are usually rendered a certain way by the browser */
  &[type=reset],
  &[type=button],
  &[type=submit],
  &[type=checkbox],
  &[type=radio] {
    @extend %form-reset-special-box-sizing;
  }
}

@mixin form-reset-label {
  @include form-reset-general;
}

%form-reset-label {
  @extend %form-reset-general;
}

@mixin form-reset-select-specific {
  /* Move the label to the top */
  &[multiple] {
    vertical-align: top;
  }
}

@mixin form-reset-select {
  @include form-reset-general;
  @include form-reset-special-box-sizing;
  @include form-reset-select-specific;
}

%form-reset-select {
  @extend %form-reset-general;
  @extend %form-reset-special-box-sizing;
  @include form-reset-select-specific;
}

@mixin form-reset-button-specific {
  background: none;
  border: 0;
  outline: none;

  &::-moz-focus-inner {
    border: 0;
    padding: 0;
  }
  &:hover,
  &:active,
  &:focus {
    outline: 0;
  }

  /* IE8 and FF freak out if this rule is within another selector */
  @at-root {
    ::-webkit-file-upload-button {
      padding: 0;
      border: 0;
      background: none;
    }
  }
}

@mixin form-reset-button {
  @include form-reset-general;
  @include form-reset-button-specific;
}

%form-reset-button {
  @extend %form-reset-general;
  @include form-reset-button-specific;
}

@mixin form-reset-textarea-specific {
  /* Move the label to the top */
  vertical-align: top;

  /* Turn off scroll bars in IE unless needed */
  overflow: auto;
}

@mixin form-reset-textarea {
  @include form-reset-general;
  @include form-reset-textarea-specific;
}

%form-reset-textarea {
  @extend %form-reset-general;
  @include form-reset-textarea-specific;
}

form-reset.scss

input {
  @extend %form-reset-input;
}

label {
  @extend %form-reset-label;
}

select {
  @extend %form-reset-select;
}

button {
  @extend %form-reset-button;
}

textarea {
  @extend %form-reset-textarea;
}

Great one! Thanks!, is it not necessary to include the helpers file inside the actual reset file ?