talk/client/coral-ui/components/Button.css

.button {
    background: 0 0;
    border: none;
    border-radius: 2px;
    color: #000;
    display: block;
    position: relative;
    height: 36px;
    min-width: 64px;
    padding: 0 8px;
    display: inline-block;
    font-family: 'Roboto','Helvetica','Arial',sans-serif;
    font-size: 14px;
    overflow: hidden;
    will-change: box-shadow,transform;
    -webkit-transition: box-shadow .2s cubic-bezier(.4,0,1,1),background-color .2s cubic-bezier(.4,0,.2,1),color .2s cubic-bezier(.4,0,.2,1);
    transition: box-shadow .2s cubic-bezier(.4,0,1,1),background-color .2s cubic-bezier(.4,0,.2,1),color .2s cubic-bezier(.4,0,.2,1);
    outline: none;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    line-height: 28px;
    vertical-align: middle;
    margin: 2px;
    letter-spacing: 0.7px;
    font-weight: 400;

    i {
      margin-right: 13px;
      font-size: 18px;
      vertical-align: middle;
    }

    &:disabled {
      background: #E0E0E0;
      color: #4f5c67;
      font-weight: bold;
    }
}

.type--black {
    color: #E0E0E0;
    background: #212121;
}

.type--local {
    background: #E0E0E0;
    color: #212121;
}

.type--facebook {
    background-color: #4267b2;
    border-color: #4267b2;
    color: rgb(255, 255, 255);
}

.type--facebook:hover {
    background-color: #365899;
    border-color: #365899;
}

.type--success {
  color: white;
  background: #2376d8;
}

.type--success:hover {
  color: white;
  background: #2782ee;
}

.type--cancel {
  color: white;
  background: #2E343B;
}

.type--cancel:hover {
  color: white;
  background: #4f5c67;
}

.type--darkGrey {
  color: white;
  background: #616161;
}

.type--darkGrey:hover {
  color: white;
  background: #696969;
}

.type--lightGrey {
  color: white;
  background: #ccc;
  cursor: default;
}

.type--lightGrey:hover {
  color: white;
  background: #ccc;
}

.type--green {
  color: white;
  background: #00897B;
}

.type--green:hover {
  color: white;
  background: #00a291;
}

.full {
  width: 100%;
  margin: 0;
}

.raised {
  box-shadow: 0 2px 2px 0 rgba(0,0,0,.14),0 3px 1px -2px rgba(0,0,0,.2),0 1px 5px 0 rgba(0,0,0,.12);
}