body,div,p,h1{ padding:0; margin:0; list-style:none;}
body{color:#222; font-size:14px; font-family:"微软雅黑";padding-top:10px;padding-bottom:56px;}
div{width: 95%;max-width:980px; margin:0px auto; line-height:42px;}
a{color: #222;text-decoration: none}
textarea{width: 95%;max-width:950px; height:180px;border:1px solid #ccc;border-radius: 8px;padding:10px;outline: none;}
div.btn{ text-align:center; height:60px; line-height:50px; }
div.btn input{ width:88px; height:33px; font-size:18px; background: #FF890D; color: #FFFFFF}
p{ margin-left:28px;}
div.top{width: 100%;max-width:980px; height:45px; margin:0px auto; padding:12px 0px;}
div.top h1{ font-size:32px; font-weight:bold;}
.green{ color:#009900;}
.red{ color:#cc0000;}
.info{ padding:12px 8px;border:1px dashed #ccc; line-height:28px;border-radius: 8px;}
.info strong, #description strong{color:red;font-size:16px;}
.strong{color:black;font-size:16px;}
.info span{font-size:16px;}
#prompt h3{padding: 3px;margin: 0;}
#description{padding: 12px 0px;line-height: 28px;}
.input{width: 95%;max-width:360px;height: 26px; border-radius:5px; border:1px solid #ccc;padding: 1px 6px;}
.foot{ padding:18px 0px;; height:90px; line-height:30px;}
.foot a{text-decoration:none;color:#222;}

   nav {
                min-width: 1000px;
                margin: 0 auto;
                background: #f9f9f9;
                border: 1px solid #A0A0A0;
                box-shadow: 0 3px 15px rgba(0,0,0,.15);
            }

            nav::after {
                display: block;
                content: '';
                clear: both;
            }

            nav ul {
                padding: 0;
                margin: 0 auto;
                list-style: none;
                width: 980px;
            }

            nav ul li {
                float: left;
                position: relative;
            }

            nav ul li a {
                display: block;
                color: black;
                text-decoration: none;
                padding: 1rem 2rem;
                border-top: 2px solid transparent;
                border-bottom: 2px solid transparent;
                transition: all .3s ease-in-out;
            }