Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.4.7)
// Compass (v1.0.1)
// ----

// abstract btn class

@import 'compass/css3';
%btn {
    $radius-default: 2px !default;
    @include inline-block;
    padding:7px 20px 6px;
    font-size:14px;
    font-weight:bold;
    line-height:1.5;
    font-family:'SimSun', Arial;
    letter-spacing:.1em;
    text-align:center;
    text-decoration:none;
    border-width:0 0 1px 0;
    border-style:solid;
    background-repeat:repeat-x;
    @include border-radius($radius-default);
    @include user-select(none);
    cursor:pointer;
    &:hover, &:focus, &:active {
        text-decoration:none;
        outline:none;
    }
}
.btn {
  @extend %btn;
}

SassMeister-output.css

.btn {
  display: inline-block;
  vertical-align: middle;
  *vertical-align: auto;
  *zoom: 1;
  *display: inline;
  padding: 7px 20px 6px;
  font-size: 14px;
  font-weight: bold;
  line-height: 1.5;
  font-family: 'SimSun', Arial;
  letter-spacing: .1em;
  text-align: center;
  text-decoration: none;
  border-width: 0 0 1px 0;
  border-style: solid;
  background-repeat: repeat-x;
  -moz-border-radius: 2px;
  -webkit-border-radius: 2px;
  border-radius: 2px;
  -moz-user-select: -moz-none;
  -ms-user-select: none;
  -webkit-user-select: none;
  user-select: none;
  cursor: pointer;
}
.btn:hover, .btn:focus, .btn:active {
  text-decoration: none;
  outline: none;
}