CSS Property Order

property order.css

.selector {
    /* Preprocessor variables */
    @box-size(20px);
    @graident(@main_blue, 2px);
 
    /* Display & Box Model */
    display: inline-block;
    overflow: hidden;
    box-sizing: border-box;
    width: 100px;
    height: 100px;
    padding: 10px;
    margin: 10px;
 
    /* Positioning */
    position: absolute;
    z-index: 10;
    top: 0;
    right: 0;
 
    /* Color */
    background: #000;
    color: #fff
 
    /* Text */
    font-family: sans-serif;
    font-size: 16px;
    line-height: 1.4;
    text-align: right;
 
    /* Background */
    background-image: url(/static/img/icon/bullet.png);
    border: 10px solid #333;
 
    /* Radius */
    border-radius: 2px 2px 0px 0px;
    text-shadow: 1px 1px #333;
 
    /* Other & Vendor Prefixes */
    cursor: pointer;
    -webkit-box-shadow: inset 0 0 1px 1px #eee;
    -moz-box-shadow: inset 0 0 1px 1px #eee;
    box-shadow: inset 0 0 1px 1px #eee;
 
}

line 4: gradient <3