纯CSS实现的多级下拉鼠标点击显示导航菜单代码
纯CSS实现的多级下拉鼠标点击显示导航菜单代码
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 | < !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>纯CSS实现的多级下拉鼠标点击显示导航菜单代码</title> <style type="text/css"> /* for this demo only */ #backgroundHolder { width:750px; height:490px; background:url(ulmulti4/pic.jpg); padding-top:10px; margin:0 auto; } /* ---------------------------------------------------------------------------- */ /* default styling */ .nav, .nav ul { list-style-type:none; margin:0; padding:0; } .nav a { text-decoration:none; } .nav { font-family: arial, sans-serif; font-size:12px; width:650px; margin:0 auto; } /* style the links */ .nav a { background:url(ulmulti4/box.gif) no-repeat right center; } .nav a.top { background:url(ulmulti4/box.gif) no-repeat right top; } .nav a.top2 { background:url(ulmulti4/box2.gif) no-repeat right top; } .nav a.bottom { background:url(ulmulti4/box.gif) no-repeat right bottom; } .right ul ul a { background:url(ulmulti4/box3.gif) no-repeat right center; } .right ul ul a.top2 { background:url(ulmulti4/box3.gif) no-repeat right top; } .right ul ul a.bottom { background:url(ulmulti4/box3.gif) no-repeat right bottom; } /* style the <b> element so that is does not affect the size of the link */ .nav a b { color:#600; font-weight:normal; display:block; padding:5px 10px 5px 15px; } .nav .fly .main b { background: transparent url(ulmulti4/arrow.gif) no-repeat 117px 9px; } .nav .down b { background: transparent url(ulmulti4/arrow2.gif) no-repeat 115px 11px; } .nav .right ul b { text-align:right; } .nav .right ul ul b { padding: 5px 15px 5px 10px; } .nav .right ul .main b { background: transparent url(ulmulti4/arrow3.gif) no-repeat 15px 9px; text-align:right; } .nav .right ul ul .main b { background: transparent url(ulmulti4/arrow3.gif) no-repeat 5px 9px; text-align:right; } /* HEIGHT */ .nav ul ul { top:-22px; } /* position the top of the flyout first sub menus */ .nav ul ul ul { top:-25px; } /* position the top of the flyout second and third sub menus */ .nav ul.two { top:-40px; } /* position the top of the flyout sub menus with previous text on two lines */ /* WIDTH change this WITH CARE to suit your requirements */ /*set the link width here*/ .nav .drop, .nav a { width:130px; } .nav ul li { max-width:130px; } /* fix for IE8 */ /* set the left flyout position here */ .nav ul ul { left:130px; } /* set the right flyout positions here */ .nav li.right ul ul { left:auto; right:120px; } .nav li.right ul ul ul { left:auto; right:130px; } /* make this WIDTH - 1px */ /* or WIDTH - 0.063em if using em sizing */ .nav a { margin-right:-129px; } /* ---------------------------------------------------------------------------- */ /* DO NOT CHANGE ANYTHING BELOW */ .nav li { float:left; } /* fixes IE bugs, and allows for clearing */ .nav ul { float:left; position:relative; z-index:20; } /* necessary for float drop and to stack the <ul>s */ .nav ul li { clear:left; } /* must clear the floated list item inside sublist */ .nav a { position:relative; display:block; } /* needs to have a position, to be above the rest */ .nav a.main { float:left; /* necessary for float drop */ margin-top:10000px; } /* bring the top level links back into view */ .nav .drop, .nav .fly { margin-top:-10000px; } /* hide the sub links and their containers, opera has low upper limits */ .nav ul { margin-bottom:-5000px; } /* avoid any interaction between the subs, can be any large size */ /* The bits that do ALL the work to bring the sub menus into view */ /* .nav a:hover, */ /* un-comment this style if you want the menu to work on hover */ .nav a:focus, .nav a:active { margin-right:0; z-index:10; outline:0; } .nav a:hover b, .nav a:focus b, .nav a:active b { color:#060; cursor:pointer; } /* this is for keyboard tabbing color change */ /* OPERA fix */ .nav ul:hover, .nav ul ul:hover { clear:left; } /* to stop intermittent sub link :hover problems */ /* ---------------------------------------------------------------------------- */ </ul></b></style> <!--[if lte IE 7]> <style type="text/css"> /* bug fixes for IE7 and lower - DO NOT CHANGE */ .nav .fly {width:99%;} /* make each flyout 99% of the prevous level */ a:active {} /* requires a blank style for :active to stop it being buggy */ .nav ul:hover, .nav ul ul:hover {clear:none;} /* to stop intermittent sub link :hover problems */ </style> < ![endif]--> </head> <body> <div id="backgroundHolder"> <ul class="nav"> <li class="drop"><a class="main top" href="#url"><b>Home</b></a></li> <li class="drop"><a class="main down top" href="#url"><b>Equipment</b></a> <ul> <li class="fly"><a class="main" href="#url"><b>Cameras</b></a> <ul> <li><a class="top2" href="#url"><b>Film Type</b></a></li> <li><a href="#url"><b>Compact</b></a></li> <li><a href="#url"><b>Polaroid</b></a></li> <li><a href="#url"><b>Digital</b></a></li> <li class="fly"><a class="main" href="#url"><b>Digital SLR</b></a> <ul> 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