source: Ballon/web/resources/css/button.css

/** ****************************************************************** **/
/** http://particletree.com/features/rediscovering-the-button-element/ **/
/** ****************************************************************** **/

/* BUTTONS */

button {
    -moz-border-radius: 4px 4px 4px 4px;
    -webkit-border-radius: 4px 4px 4px 4px;

    display: block;
    float: left;
    margin: 0 11px 0 0;
    background-color: #f5f5f5;

    border: 1px solid #dedede;
    border-top: 1px solid #eee;
    border-left: 1px solid #eee;

    font-family: "Lucida Grande", Tahoma, Arial, Verdana, sans-serif;
    font-size: 100%;
    line-height: 130%;
    text-decoration: none;
    font-weight: bold;
    color: #565656;
    cursor: pointer;

    width: auto;
    overflow: visible;
    padding: 4px 6px 3px 6px; /* IE6 */

    -moz-box-shadow: 2px 3px 7px rgba(0, 0, 0, 0.3);
    -webkit-box-shadow: 2px 3px 7px rgba(0, 0, 0, 0.3);
    box-shadow: 2px 3px 7px rgba(0, 0, 0, 0.3);
}

button[type] {
    /* padding: 5px 10px 5px 7px;  Firefox */
    padding: 2px 10px 5px 7px; /* Firefox */
    line-height: 17px; /* Safari */
}

*:first-child+html button[type] {
    padding: 4px 10px 3px 7px; /* IE7 */
}

.small {
    font-size: 80%;
}

button img {
    margin: 0 3px -3px 0 !important;
    padding: 0;
    border: none;
    width: 16px;
    height: 16px;
}

/* STANDARD */
button:hover {
    background-color: #dff4ff;
    border: 1px solid #c2e1ef;
    color: #336699;
}

/* POSITIVE */
button.positive {
    background-color: #F0FFF0;
    color: #529214;
}

button.positive:hover {
    background-color: #E6EFC2;
    border: 1px solid #C6D880;
    color: #529214;
}

/* NEGATIVE */
button.negative {
    color: #d12f19;
}

button.negative:hover {
    background: #fbe3e4;
    border: 1px solid #fbc2c4;
    color: #d12f19;
}

/* DISABLE */
button.disable, button.disable:hover {
    background-color: #CCCCCC;
    border: 1px solid #dedede;
    color: #565656;
}

/* BLUE BUTTON */
button.blue_button {
    background-image: url("../images/elements/button_middle_3.png");
    background-repeat: repeat-x;
    height: 39px;
    float: right;
    margin-right: 0;
    border: 0;
}

.blue_button_text, .big_blue_button_text {
    color: white;
    font-size: 11px;
    font-weight: bold;
}

button.big_blue_button {
/*background-image: url("../images/logoNat_small.png");*/
    background-image: url("../images/elements/big_button_middle_3.png");
    background-repeat: repeat-x repeat-y;
    height: 50px;
    width: 50px;
    float: right;
    margin-right: 0;
    border: 0;
}

.big_blue_button_text {
    position: relative;
    top: -3px;
    font-size: 44px;
}

/* GRAY BUTTON */
button.gray_button {
    /* background-image: url("../images/elements/button_middle_gray.png");
  background-repeat: repeat-x;
  height: 41px;
  float: right;
  margin-right: 0;
  position: relative;
  top: -1px; */
    background-color: #EFF0F0;
    color: #000000;
    font-weight: normal;
}

button.gray_button:hover {
    background-color: #D6D9D9;
    border: 1px solid #c2e1ef;
}

button.action_button {
    margin-left: 5px;
    margin-right: -3px;
}

/* RED BUTTON */
button.red_button {
   /* background-color: #581700;*/
    background-color: #003D6C;
    height: 39px;
    float: right;
    margin-right: 0;
    border: 0;
}

.red_button_text {
    color: white;
    font-size: 11px;
    font-weight: bold;
}

button.red_button:hover {
    background-color: #881714;
}