huanggr
相信大家对哔哩哔哩（B站），应该是在熟悉不过了，在它的右侧，可以点击快速跳转到某一个固定位置，每一个位置对应的都是相应的内容，接下来我们就来实现一下吧。
源码如下：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 | <!DOCTYPE HTML> <html> <head> <title>爱前端博客</title> <meta charset="utf-8"> <meta name="Author" content=""> <style type='text/css'> *{ margin:0; padding:0;} div{ font-size:30px; font-family:'Microsoft yahei'; font-weight:bold; } li{ list-style:none; } #header,#footer{ width:1300px; height:800px; background:#ffcccc; margin:0 auto; line-height:500px; text-align:center; } #content{ width:1300px; margin:0 auto; position:relative; } #content div.nav{ width:1300px; height:500px; } #slide{ width:50px; height:500px; border:1px solid #ddd; border-radius:3px; background:#e6f7f7; float:right; position:fixed; top:230px; } #slide ul li.control{ width:50px; height:32px; line-height:32px; text-align:center; font-size:12px; color:#000; font-weight:normal; cursor:pointer; transition:0.2s; position:relative; z-index:2; } #slide ul li.blue{ background:#00A1D6; width:50px; height:32px; position:absolute; top:0px; z-index:1; display:none; } #slide ul li:hover{ background:#00A1D6; color:#fff; } #slide ul li.on{ background:#00A1D6; color:#fff; } #slide_wrap{ position:absolute; right:-10px; } </style> </head> <body> <div id="header">header</div> <div id='content'> <div class='nav' style="background-color:#33ffff">动画</div> <div class='nav' style="background-color:#ff0066">音乐</div> <div class='nav' style="background-color:#990099">舞蹈</div> <div class='nav' style="background-color:#00ffff">番剧</div> <div class='nav' style="background-color:#00ff33">科技</div> <div class='nav' style="background-color:#66ff66">娱乐</div> <div class='nav' style="background-color:#ff9966">鬼畜</div> <div class='nav' style="background-color:#999966">电影</div> <div class='nav' style="background-color:#cc9966">TV剧</div> <div class='nav' style="background-color:#0000cc">直播</div> <div class='nav' style="background-color:#330033">时尚</div> <div class='nav' style="background-color:#cc00ff">游戏</div> <div id="slide_wrap"> <div id='slide'> <ul> <li class="control">动画</li> <li class="control">音乐</li> <li class="control">舞蹈</li> <li class="control">番剧</li> <li class="control">科技</li> <li class="control">娱乐</li> <li class="control">鬼畜</li> <li class="control">电影</li> <li class="control">TV剧</li> <li class="control">直播</li> <li class="control">时尚</li> <li class="control">游戏</li> <li class="blue"></li> </ul> </div> </div> </div> <div id="footer">footer</div> <script type="text/javascript" src='jquery-1.12.1.min.js'></script> <script type="text/javascript"> // 解决导航条定位问题 (function(){ var $content = $('#content'); var $slide = $('#slide'); var slideH = $slide.height(); var cOffsetTop = $content.offset().top; var minus = ($(window).height() - slideH)/2; minus = Math.max(0,minus); $(window).resize(function(){ minus = ($(window).height() - slideH)/2; minus = Math.max(0,minus); $slide.css('top' , minus + 'px'); }).scroll(function(){ var scrollTop = $(document).scrollTop(); if ( scrollTop > 100 ) { $slide.css('top' , minus + 'px'); } else { $slide.css('top' , '230px'); } }); })(); // 导航条操作 (function(){ var $slideLi = $('#slide ul li.control'); var $blue = $('#slide ul li.blue'); var $nav = $('#content .nav'); var length = $nav.length; var index = 0; var onOff = true; $slideLi.click(function(){ onOff = false; index = $(this).index(); $(this).addClass('on').siblings().removeClass('on'); var This = this; var navOffsetTop = $nav.eq(index).offset().top; //$(document).scrollTop(navOffsetTop); //document.documentElement document.body $('body,html').animate({ scrollTop : navOffsetTop },500,function(){ onOff = true; }); $blue.show().animate({ top : $(This).position().top + 'px', },400,function(){ $(this).hide(); }); }); $(window).scroll(function(){ if ( onOff ) { console.log(1); var scrollTop = $(document).scrollTop(); for ( var i=0;i<length;i++ ) { if ( scrollTop < $nav.eq(i).offset().top ) { index = i - 1; if ( index < 0 ) { index = 0; $slideLi.removeClass('on'); }else { $slideLi.eq(index).addClass('on').siblings().removeClass('on'); $blue.show().stop(true).animate({ top : $slideLi.eq(index).position().top + 'px', },100,function(){ $(this).hide(); }); } break; } } } }); })(); </script> </body> </html> |
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