/* CSS Document */
/*公共部分============*/
body{margin:0;padding:0;color:#2a2a2a;font-size:12px;font-family:"新宋体";}
em,p,h1,h2,h3,h4,h5,h6,form,fieldset,table,td,img,div{margin:0;padding:0;border:0;}
ul,ol,li,dd,dt{list-style:none; margin:0; padding:0;}
input,button,textarea,select,optgroup,option{font-family:inherit; font-size:inherit; font-style:inherit; font-weight:inherit;}
a {text-decoration:none;}
.clear{clear:both;height:1px; margin:0px; padding:0;}
/*公共头部============*/
.topnav1 { width:980px; margin:0 auto; height:35px; line-height:35px; text-align:left; background:url(https://img.mybjx.net/theme/default/images/common/shared/topnavbg.gif) repeat-x;}
.topnav1 a{ background:#FF9966; color:#2a2a2a;}
.topnav1 a:hover{color:#FF0000; text-decoration:underline;}
.topnav1 span { width:auto; height:35px; float:right; white-space:nowrap;_width:250px;}
.topnav1 a.nobg{ background:none;}
.topnav1 a{ padding:0 5px; width:25px; float:left; display:block; white-space:nowrap; background:url(https://img.mybjx.net/theme/default/images/common/shared/line.gif) no-repeat 32px -45px;}
.topnav1 span a { width:50px; text-align:center; float:right; display:block; white-space:nowrap;background:url(https://img.mybjx.net/theme/default/images/common/shared/line.gif) no-repeat 55px 1px;}
.topnav1 a.bjxsy{text-decoration:none;width:110px; display:block; float:left; background:none;}
.topnav1 a.nobg{ background:none;}
.blue0 { color:#03005C;} /*定义“北极星电力网首页”宽度*/
.topnav1 a h3{ font-size:12px; line-height:35px;}  /*北极星电力网首页*/
/*banner============*/
.windFarm_banner{ background:url(images/banner.jpg) no-repeat center top; width:100%; height:365px; margin:0 auto; margin-bottom:10px;}
<!--活动介绍-->
.activity_title p{padding-left:20px; padding-top:10px;}
.activity_content{ overflow:hidden; height:100%; padding:25px 25px 20px 25px;}
.activity_content img{ width:132px; height:162px; float:left;}
.activity_content .activity_content_p{}
.activity_content .activity_content_p p{text-indent:2em; font-size:14px; line-height:28px;}
.windFarm_content{ width:977px; margin:auto;}
.activity{ border:1px solid #d3d3d3;}
.activity_title{ background:url(images/tiele01_bg.jpg) no-repeat; width:975px; height:51px;}
.activity_title p{font-size:20px; color:#FFFFFF; font-family:'微软雅黑';padding-left:20px; padding-top:10px; font-weight:bold;}
<!--风电场介绍-->
.introduce{ margin-top:10px;}
.introduce .introduce_title{ background:url(images/tiele02_bg.jpg) no-repeat; width:977px; height:41px; margin-top:10px;}
.introduce .introduce_title p{ font-size:18px;font-family:'微软雅黑'; color:#000000; background:url(images/title_dot.png) no-repeat left 12px; margin-left:15px; padding-left:23px; padding-top:7px; font-weight:bold;}
.introduce .introduce_content{ background:url(images/content_bg.jpg) no-repeat; padding:15px 20px;}
.introduce .introduce_content p{ font-size:14px; color:#333333; line-height:28px; text-indent:2em;}
<!--风电动态-->
.trends{ margin-top:15px;}
.trends .trends_title{ margin-top:15px; overflow:hidden; height:100%; position:relative}
.trends .trends_title p{ float:left; width:137px; font-size:18px; color:#000000; font-family:'微软雅黑'; background:url(images/p_dot01.jpg) no-repeat left center; padding-left:18px; font-weight:bold;}
.trends .trends_title span{ position:absolute; left:160px; top:5px}
.trends_title_dot{ float:left; width:822px; background:url(images/title_chongfu.jpg) repeat-x; height:15px;margin-top:5px;}
.trends .trends_content{ margin-top:15px; overflow:hidden; height:100%; overflow:hidden}
.trends .trends_content ul{ width:1000px}
.trends .trends_content ul li{float:left;width:470px;background:url(images/bottom_line.jpg) repeat-x left bottom;  line-height:28px; overflow:hidden; height:100%; margin-right:20px}
.trends .trends_content ul li a{ float:left; font-size:14px; color:#333333; background:url(images/a_dot.jpg) no-repeat left center; padding-left:9px;}
.trends .trends_content ul li span{ float:right; font-size:12px; color:#999999;}
.trends .trends_content .trends_content_jl{ margin-left:35px;}
.trends .trends_content .trends_content_jl01{ padding-left:12px;}
.trends .trends_content ul li a:hover{color:#FF0000; text-decoration:underline;}
.trends #marquee,.trends #marquee2{ width:977px; height:141px; overflow:hidden; margin-bottom:20px;}
.trends #marquee ul,.trends #marquee2 ul{ overflow:hidden; height:100%; width:977px; padding-left:0px; padding-left:2px;}
.trends #marquee ul li,.trends #marquee2 ul li{ width:195px; float:left; background:none; margin-right:0; cursor:pointer}
.trends #marquee ul li img,.trends #marquee2 ul li img{ width:188px; height:141px;}
.trends #marquee ul li a,.trends #marquee2 ul li a{ background:none; padding-left:0px;}
.trends #marquee ul .marquee_li,.trends #marquee2 ul .marquee_li{ margin-right:0;}

/*****Footer*****/
.footer { width:980px; height:auto;zoom:1; line-height:20px; text-align:center; margin:0 auto; clear:both;}
.down_dh { width:980px; margin:0 auto; height:25px; line-height:25px;background:url(https://img.mybjx.net/theme/default/images/common/shared/navbg.gif) repeat-x 0 -110px; text-align:center; padding-top:15px; clear:both;}
.bottom {line-height:25px;color:#0f3f92; text-align:center; border-top:1px solid #ddd; margin-top:10px;}
.bottom a { color:#0f3f92;}
.footer img,.bottom img { vertical-align:middle;}
.liuliangtongji { padding-bottom:10px; text-align:center;}
.foot { width:980px;margin:0 auto; margin-bottom:10px;border-top:5px solid #0067a3; line-height:30px; text-align:center; clear:both; font-weight:normal;color:#2A2A2A; font-size:12px;}
p.footLine { padding:0; margin:0;border-bottom:1px solid #ddd; height:30px;_height:20px; _padding-top:5px; _margin-bottom:5px; font-size:12px;}
.foot a{ color:#2151a5; font-size:12px;}
.foot img{ vertical-align:middle;}
/*微信*/
.ball{ width:150px; height:187px; padding-top:257px; background:url(images/weixin.png)no-repeat; position:absolute; left:20px;margin:0}
.js_mask{background: rgba(0, 0, 0, 0.5); position:fixed; left:0; top:0; width:100%; height:100%; display:none}
.js_selector{position:fixed; width:700px; left:50%; margin-left:-350px; height:525px; top:50%; margin-top:-262px;  display:none}
.js_selector img{cursor:url(images/cursor_right.cur), auto;}
.close{float:right; color:#fff; background:.#000; padding:2px 5px; cursor:pointer}