转载 -- CSS3 中关于 select 下拉列表的样式

截图效果：

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style type="text/css">
 
            /* SELECT W/IMAGE */
            select#selectTravelCity
            {
               width                    : 14em;
               height                   : 3.2em;
               padding                  : 0.2em 0.4em 0.2em 0.4em;
               vertical-align           : middle;
               border                   : 1px solid #e9e9e9;
               -moz-border-radius       : 0.2em;
               -webkit-border-radius    : 0.2em;
               border-radius            : 0.2em;
               box-shadow               : inset 0 0 3px #a0a0a0;
               -webkit-appearance       : none;
               -moz-appearance          : none;
               appearance               : none;
               /* sample image from the webinfocentral.com */
               background               : url(http://webinfocentral.com/Images/favicon.ico) 95% / 10% no-repeat #fdfdfd;
               font-family              : Arial,  Calibri, Tahoma, Verdana;
               font-size                : 1.1em;
               color                    : #000099;
               cursor                   : pointer;
            }
            select#selectTravelCity  option
            {
                font-size               : 1em;
                padding                 : 0.2em 0.4em 0.2em 0.4em;
            }
            select#selectTravelCity  option[selected]{ font-weight:bold}
            select#selectTravelCity  option:nth-child(even) { background-color:#f5f5f5; }
            select#selectTravelCity:hover
            {
                color                   : #101010;
                border                  : 1px solid #cdcdcd;
            }
            select#selectTravelCity:focus {box-shadow: 0 0 2px 1px #404040;}
 
            /*SELECT W/DOWN-ARROW*/
            select#selectPointOfInterest
            {
               width                    : 185pt;
               height                   : 40pt;
               line-height              : 40pt;
               padding-right            : 20pt;
               text-indent              : 4pt;
               text-align               : left;
               vertical-align           : middle;
               box-shadow               : inset 0 0 3px #606060;
               border                   : 1px solid #acacac;
               -moz-border-radius       : 6px;
               -webkit-border-radius    : 6px;
               border-radius            : 6px;
               -webkit-appearance       : none;
               -moz-appearance          : none;
               appearance               : none;
               font-family              : Arial,  Calibri, Tahoma, Verdana;
               font-size                : 18pt;
               font-weight              : 500;
               color                    : #000099;
               cursor                   : pointer;
               outline                  : none;
            }
            select#selectPointOfInterest option
            {
                padding             : 4px 10px 4px 10px;
                font-size           : 11pt;
                font-weight         : normal;
            }
            select#selectPointOfInterest option[selected]{ font-weight:bold}
            select#selectPointOfInterest option:nth-child(even) { background-color:#f5f5f5; }
            select#selectPointOfInterest:hover {font-weight: 700;}
            select#selectPointOfInterest:focus {box-shadow: inset 0 0 5px #000099; font-weight: 600;}
 
            /*LABEL FOR SELECT*/
            label#lblSelect{ position: relative; display: inline-block;}
            /*DOWNWARD ARROW (25bc)*/
            label#lblSelect::after
            {
                content                 : "\25bc";
                position                : absolute;
                top                     : 0;
                right                   : 0;
                bottom                  : 0;
                width                   : 20pt;
                line-height             : 40pt;
                vertical-align          : middle;
                text-align              : center;
                background              : #000099;
                color                   : #fefefe;
               -moz-border-radius       : 0 6px 6px 0;
               -webkit-border-radius    : 0 6px 6px 0;
                border-radius           : 0 6px 6px 0;
                pointer-events          : none;
            }
        </style>
</head>
 
<body>
<br />
        <select id="selectTravelCity" title="Select Travel Destination">
            <option>New York City</option>
            <option>Washington DC</option>
            <option>Los Angeles</option>
            <option>Chicago</option>
            <option>Houston</option>
            <option>Philadelphia</option>
            <option>Phoenix</option>
            <option>San Antonio</option>
            <option>San Diego</option>
            <option>Dallas</option>
            <option>San Jose</option>
            <option>Austin</option>
        </select>
        <br />
        <br />
 
        <label id="lblSelect">
            <select id="selectPointOfInterest" title="Select points of interest nearby">
                <option>caffe</option>
                <option>food beverage</option>
                <option>restaurant</option>
                <option>shopping</option>
                <option>taxi limo</option>
                <option>theatre</option>
                <option>museum</option>
                <option>computers</option>
            </select>
        </label>
</body>
</html>

介绍请看 http://www.codeproject.com/Tips/890021/Advanced-CSS-styling-of-HTML-SELECT-Element