common.css

/* Common Chrome Style */
body {
  font-size: 87%;
  margin: 10px;
  font-family: Arial, Helvetica, 'Helvetica Neue', Verdana, sans-serif;
  padding: 0;
}
.clear {
  clear: both;
}

/* Default state **************************************************************/

button:not(.custom-appearance):not(.link-button),
input[type='button']:not(.custom-appearance):not(.link-button),
input[type='submit']:not(.custom-appearance):not(.link-button),
select,
input[type='checkbox'],
input[type='radio'] {
  -webkit-appearance: none;
  -webkit-user-select: none;
  background-image: -webkit-linear-gradient(#ededed, #ededed 38%, #dedede);
  border: 1px solid rgba(0, 0, 0, 0.25);
  border-radius: 2px;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.08),
      inset 0 1px 2px rgba(255, 255, 255, 0.75);
  color: #444;
  font: inherit;
  margin: 0 1px 0 0;
  text-shadow: 0 1px 0 rgb(240, 240, 240);
}

button:not(.custom-appearance):not(.link-button),
input[type='button']:not(.custom-appearance):not(.link-button),
input[type='submit']:not(.custom-appearance):not(.link-button),
select {
  min-height: 2em;
  min-width: 4em;

/* The following platform-specific rule is necessary to get adjacent
   * buttons, text inputs, and so forth to align on their borders while also
   * aligning on the text's baselines. */
  padding-bottom: 1px;
}

button:not(.custom-appearance):not(.link-button),
input[type='button']:not(.custom-appearance):not(.link-button),
input[type='submit']:not(.custom-appearance):not(.link-button) {
  -webkit-padding-end: 10px;
  -webkit-padding-start: 10px;
}

select {
  -webkit-appearance: none;
  -webkit-padding-end: 20px;
  -webkit-padding-start: 6px;
  /* OVERRIDE */
  background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABMAAAAICAYAAAAbQcSUAAAAWklEQVQokWNgoAOIAuI0PDiKaJMSgYCZmfkbkPkfHYPEQfJEG/b//3+FBQsWLGRjY/uJbBCIDxIHyRNtGDYDyTYI3UA+Pr4vFBmEbODbt2+bKDYIyUBWYtQBAIRzRP/XKJ//AAAAAElFTkSuQmCC"),
      -webkit-linear-gradient(#ededed, #ededed 38%, #dedede);
  background-position: right center;
  background-repeat: no-repeat;
}

html[dir='rtl'] select {
  background-position: center left;
}

input[type='checkbox'] {
  bottom: 2px;
  height: 13px;
  position: relative;
  vertical-align: middle;
  width: 13px;
}

input[type='radio'] {
  /* OVERRIDE */
  border-radius: 100%;
  bottom: 3px;
  height: 15px;
  position: relative;
  vertical-align: middle;
  width: 15px;
}

/* TODO(estade): add more types here? */
input[type='password'],
input[type='search'],
input[type='text'],
input[type='url'],
input:not([type]) {
  border: 1px solid #bfbfbf;
  border-radius: 2px;
  box-sizing: border-box;
  color: #444;
  font: inherit;
  height: 2em;
  margin: 0;
  padding: 3px;
/* For better alignment between adjacent buttons and inputs. */
  padding-bottom: 4px;

}

input[type='search'] {
  -webkit-appearance: textfield;
  /* NOTE: Keep a relatively high min-width for this so we don't obscure the end
   * of the default text in relatively spacious languages (i.e. German). */
  min-width: 160px;
}

/* Checked ********************************************************************/

input[type='checkbox']:checked::before {
  -webkit-user-select: none;
  background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAsAAAALCAYAAACprHcmAAAAAXNSR0IArs4c6QAAAAZiS0dEAP8A/wD/oL2nkwAAAAlwSFlzAAALEwAACxMBAJqcGAAAAAd0SU1FB9wDBhYcG79aGIsAAACbSURBVBjTjdFBCkFhFAXgj4fp24PBy0SZ2ICRXRgYGb2xlKzBSEo2YgsiKWVoZgFKMjD5X/2Ux6lb99bpnNO5lKMR5i8MsEQHkhJiEzlS9HCqfiFWMUIt3AfsC3KKLCL30Qr7HfM4Ro4h6rhiEqmusIMKuphGqo+ogSPGcbYLzh91vdkXSHDDBk+0gxussS3rNcMCs+D6E18/9gLPPhbDshfzLgAAAABJRU5ErkJggg==");
  background-size: 100% 100%;
  content: '';
  display: block;
  height: 100%;
  width: 100%;
}

html[dir='rtl'] input[type='checkbox']:checked::before {
  -webkit-transform: scaleX(-1);
}

input[type='radio']:checked::before {
  background-color: #666;
  border-radius: 100%;
  bottom: 25%;
  content: '';
  display: block;
  left: 25%;
  position: absolute;
  right: 25%;
  top: 25%;
}

/* Hover **********************************************************************/

button:not(.custom-appearance):not(.link-button):enabled:hover,
input[type='button']:not(.custom-appearance):not(.link-button):enabled:hover,
input[type='submit']:not(.custom-appearance):not(.link-button):enabled:hover,
select:enabled:hover,
input[type='checkbox']:enabled:hover,
input[type='radio']:enabled:hover {
  background-image: -webkit-linear-gradient(#f0f0f0, #f0f0f0 38%, #e0e0e0);
  border-color: rgba(0, 0, 0, 0.3);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.12),
      inset 0 1px 2px rgba(255, 255, 255, 0.95);
  color: black;
}

select:enabled:hover {
  /* OVERRIDE */
  background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABMAAAAICAYAAAAbQcSUAAAAWklEQVQokWNgoAOIAuI0PDiKaJMSgYCZmfkbkPkfHYPEQfJEG/b//3+FBQsWLGRjY/uJbBCIDxIHyRNtGDYDyTYI3UA+Pr4vFBmEbODbt2+bKDYIyUBWYtQBAIRzRP/XKJ//AAAAAElFTkSuQmCC"),
      -webkit-linear-gradient(#f0f0f0, #f0f0f0 38%, #e0e0e0);
}

/* Active *********************************************************************/

button:not(.custom-appearance):not(.link-button):enabled:active,
input[type='button']:not(.custom-appearance):not(.link-button):enabled:active,
input[type='submit']:not(.custom-appearance):not(.link-button):enabled:active,
select:enabled:active,
input[type='checkbox']:enabled:active,
input[type='radio']:enabled:active {
  background-image: -webkit-linear-gradient(#e7e7e7, #e7e7e7 38%, #d7d7d7);
  box-shadow: none;
  text-shadow: none;
}

select:enabled:active {
  /* OVERRIDE */
  background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABMAAAAICAYAAAAbQcSUAAAAWklEQVQokWNgoAOIAuI0PDiKaJMSgYCZmfkbkPkfHYPEQfJEG/b//3+FBQsWLGRjY/uJbBCIDxIHyRNtGDYDyTYI3UA+Pr4vFBmEbODbt2+bKDYIyUBWYtQBAIRzRP/XKJ//AAAAAElFTkSuQmCC"),
      -webkit-linear-gradient(#e7e7e7, #e7e7e7 38%, #d7d7d7);
}

/* Disabled *******************************************************************/

button:not(.custom-appearance):not(.link-button):disabled,
input[type='button']:not(.custom-appearance):not(.link-button):disabled,
input[type='submit']:not(.custom-appearance):not(.link-button):disabled,
select:disabled {
  background-image: -webkit-linear-gradient(#f1f1f1, #f1f1f1 38%, #e6e6e6);
  border-color: rgba(80, 80, 80, 0.2);
  box-shadow: 0 1px 0 rgba(80, 80, 80, 0.08),
      inset 0 1px 2px rgba(255, 255, 255, 0.75);
  color: #aaa;
}

select:disabled {
  background-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABMAAAAICAYAAAAbQcSUAAAAAXNSR0IArs4c6QAAAAd0SU1FB9sLAxYEBKriBmwAAAAGYktHRAD/AP8A/6C9p5MAAAAJcEhZcwAACxMAAAsTAQCanBgAAABLSURBVCiRY2CgA4gC4jQ8OIpokxKBoKGh4T8uDJIn2rD///8rLFiwYCE2g0DiIHkSfIndQLIMwmYgRQYhG/j27dsmig1CMpCVGHUAo8FcsHfxfXQAAAAASUVORK5CYII="),
      -webkit-linear-gradient(#f1f1f1, #f1f1f1 38%, #e6e6e6);
}

input[type='checkbox']:disabled,
input[type='radio']:disabled {
  opacity: .75;
}

input[type='password']:disabled,
input[type='search']:disabled,
input[type='text']:disabled,
input[type='url']:disabled,
input:not([type]):disabled {
  color: #999;
}

/* Focus **********************************************************************/

button:not(.custom-appearance):not(.link-button):enabled:focus,
input[type='button']:not(.custom-appearance):enabled:focus,
input[type='checkbox']:enabled:focus,
input[type='password']:enabled:focus,
input[type='radio']:enabled:focus,
input[type='search']:enabled:focus,
input[type='submit']:not(.custom-appearance):enabled:focus,
input[type='text']:enabled:focus,
input[type='url']:enabled:focus,
input:not([type]):enabled:focus,
select:enabled:focus {
  /* OVERRIDE */
  -webkit-transition: border-color 200ms;
  /* We use border color because it follows the border radius (unlike outline).
   * This is particularly noticeable on mac. */
  border-color: rgb(77, 144, 254);
  outline: none;
}

/* Link buttons ***************************************************************/

.link-button {
  -webkit-box-shadow: none;
  background: transparent none;
  border: none;
  color: rgb(17, 85, 204);
  cursor: pointer;
  /* Input elements have -webkit-small-control which can override the body font.
   * Resolve this by using 'inherit'. */
  font: inherit;
  margin: 0;
  padding: 0 4px;
}

.link-button:hover {
  text-decoration: underline;
}

.link-button:active {
  color: rgb(5, 37, 119);
  text-decoration: underline;
}

.link-button[disabled] {
  color: #999;
  cursor: default;
  text-decoration: none;
}

.checkbox,
.radio {
  margin: 0.65em 0;
}

.checkbox label,
.radio label {
  /* Don't expand horizontally: <http://crbug.com/112091>. */
  display: -webkit-inline-box;
}

.checkbox label input ~ span,
.radio label input ~ span {
  -webkit-margin-start: 0.6em;
  /* Make sure long spans wrap at the same horizontal position they start. */
  display: block;
}

.checkbox label:hover,
.radio label:hover {
  color: black;
}

label > input[type=checkbox]:disabled ~ span,
label > input[type=radio]:disabled ~ span {
  color: #999;
}