KNACSS/sass/_05-forms.scss

/* ----------------------------- */
/* ==forms                       */
/* ----------------------------- */

/* thanks to HTML5boilerplate,
* github.com/nathansmith/formalize and www.sitepen.com
*/

/* buttons */
.#{$kna-namespace}btn {
  display: inline-block;
}

/* forms items */
form,
fieldset {
  border: none;
}

input,
button,
select,
label,
.#{$kna-namespace}btn {
  vertical-align: middle;
  font-family: inherit;
  font-size: inherit;
}

button,
input,
optgroup,
select,
textarea {
  color: $base-color;
}

label {
  display: inline-block;
  vertical-align: middle;
  cursor: pointer;
}

legend {
  border: 0;
  white-space: normal;
}

textarea {
  min-height: 5em;
  vertical-align: top;
  font-family: inherit;
  font-size: inherit;
  resize: vertical;
}

select {
  -webkit-appearance: menulist-button;
}

/* if select styling bugs on WebKit */
/* select { -webkit-appearance: none; } */

/* 'x' appears on right of search input when text is entered. This removes it */
input[type="search"]::-webkit-search-decoration,
input[type="search"]::-webkit-search-cancel-button,
input[type="search"]::-webkit-search-results-button,
input[type="search"]::-webkit-search-results-decoration {
  display: none;
}

::-webkit-input-placeholder {
  color: #777;
}

input:-moz-placeholder,
textarea:-moz-placeholder {
  color: #777;
}

.#{$kna-namespace}btn:focus,
input[type="button"]:focus,
button:focus {
  outline: 0;
  -webkit-tap-highlight-color: transparent;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
}

/* unstyled forms */

button.#{$kna-namespace}unstyled,
input[type="button"].#{$kna-namespace}unstyled,
input[type="submit"].#{$kna-namespace}unstyled,
input[type="reset"].#{$kna-namespace}unstyled {
  padding: 0;
  border: none;
  line-height: 1;
  text-align: left;
  background: none;
  border-radius: 0;
  box-shadow: none;
  -webkit-appearance: none;
     -moz-appearance: none;
          appearance: none;

  &:focus {
    box-shadow: none;
    outline: none;
  }
}