鼠标悬浮提示效果
鼠标悬浮提示效果：
View Code 1 <!DOCTYPE html> 2 <html> 3 <head> 4 <meta charset="utf-8"/> 5 <title> New Document </title> 6 <style type="text/css"> 7 body{ 8 padding:10px; 9 min-height:400px; 10 } 11 .tip-help-wrap{ 12 position:absolute; 13 margin:10px; 14 color: #F60; 15 width: 240px; 16 display:none; 17 } 18 .tip-help-content{ 19 padding:5px; 20 border:1px solid #99CFEB; 21 background:#F4FAFD; 22 -moz-border-radius:4px; 23 -webkit-border-radius:4px; 24 -khtml-border-radius:4px; 25 border-radius:4px; 26 min-height:36px; 27 } 28 .tip-direction{ 29 position:absolute; 30 height:19px; 31 } 32 .tip-direction span { 33 height: 19px; 34 width: 17px; 35 font-family: Simsun; 36 font-size: 16px; 37 line-height: 21px; 38 overflow: hidden; 39 position: absolute; 40 } 41 .tip-direction span.tip-corner-inner{ 42 color:#F4FAFD; 43 z-index:2; 44 } 45 .tip-direction span.tip-corner-outer{ 46 color:#99CFEB; 47 z-index:1; 48 } 49 .tip-direction-left-top{ 50 top:10px; 51 left:-7px; 52 width:8px; 53 overflow:hidden; 54 } 55 .tip-direction-left-top span.tip-corner-inner{ 56 left:1px; 57 } 58 59 60 .tip-direction-left-bottom{ 61 bottom:10px; 62 left:-7px; 63 width:8px; 64 overflow:hidden; 65 } 66 .tip-direction-left-bottom span.tip-corner-inner{ 67 left:1px; 68 } 69 70 .tip-direction-right-top{ 71 top:10px; 72 right:-9px; 73 width:17px; 74 } 75 .tip-direction-right-top span.tip-corner-inner{ 76 left:-1px; 77 } 78 79 .tip-direction-right-bottom{ 80 bottom:10px; 81 right:-9px; 82 width:17px; 83 } 84 .tip-direction-right-bottom span.tip-corner-inner{ 85 left:-1px; 86 } 87 88 .tip-direction-top-left{ 89 top:-10px; 90 left:10px; 91 width:17px; 92 } 93 .tip-direction-top-left span.tip-corner-inner{ 94 top:1px; 95 } 96 97 .tip-direction-top-right{ 98 top:-10px; 99 right:10px;100 width:17px;101 }102 .tip-direction-top-right span.tip-corner-inner{103 top:1px;104 }105 106 .tip-direction-bottom-left{107 bottom:-9px;108 left:10px;109 width:17px;110 }111 .tip-direction-bottom-left span.tip-corner-inner{112 top:-1px;113 }114 115 .tip-direction-bottom-right{116 bottom:-9px;117 right:10px;118 width:17px;119 }120 .tip-direction-bottom-right span.tip-corner-inner{121 top:-1px;122 }123 124 .icon-help{125 display:inline-block;126 cursor:pointer;127 font-size:0;128 line-height:0;129 height:0;130 overflow:hidden;131 width:16px;132 height:16px;133 background-image: url('data:image/png;base64,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');134 }135 136 .one{137 position:absolute;138 top:20px;139 left:10px;140 }141 .two{142 position:absolute;143 top:20px;144 right:10px;145 }146 .three{147 position:absolute;148 top:50px;149 right:240px;150 }151 .four{152 position:absolute;153 bottom:10px;154 left:10px;155 }156 .five{157 position:absolute;158 bottom:20px;159 right:10px;160 }161 </style>162 </head>163 <body>164 <span >One One One One One One One One One One One One One One One One </span>165 <span >Two Two Two Two Two Two Two Two Two </span>166 <span >Three Three Three Three Three Three Three Three Three Three Three Three Three Three Three Three Three Three </span>167 <span >Four Four Four Four</span>168 <span >Five Five Five Five Five Five Five Five Five Five Five Five Five Five Five Five Five Five Five Five</span>169 <div >170 <div ></div>171 <div >172 <span >◆</span>173 <span >◆</span>174 </div>175 </div>176 <script>177 function getElementsByClassName(searchClass,node,tag){178 if(document.getElementsByClassName){179 return document.getElementsByClassName(searchClass);180 } else {181 var results=[];182 var eles = (node || document).getElementsByTagName((tag || "*"));183 var i= eles.length;184 var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");185 while(--i>=0){186 if(pattern.test(eles[i].className)){187 results.push(eles[i]);188 }189 }190 return results;191 }192 }193 194 function getCSS(obj,prototype){195 if(obj.currentStyle){196 return obj.currentStyle[prototype];197 } else {198 return document.defaultView.getComputedStyle(obj,null)[prototype];199 }200 }201 202 function bindTip(tipclassName){203 var iconHelps = getElementsByClassName(tipclassName);204 for(var i=0,j=iconHelps.length;i<j;i++){205 iconHelps[i].onmouseover = function(){206 var pos=this.getBoundingClientRect(),207 tip=getElementsByClassName("tip-help-wrap",document,"div")[0],208 direction = getElementsByClassName("tip-direction",tip,"div")[0],209 className = "tip-direction-left-top",210 boxWidth = parseInt(getCSS(tip,"width")),211 windowWidth = window.innerWidth || document.body.clientWidth,212 windowHeight = window.innerHeight || document.body.clientHeight;213 214 tip.style.left = "auto";215 tip.style.right = "auto";216 tip.style.top = "auto";217 tip.style.bottom = "auto";218 if(windowHeight - pos.bottom > 50){219 if(windowWidth-pos.left-30 < boxWidth){220 tip.style.left = (pos.left-boxWidth-20) + "px";221 tip.style.top = (pos.top - 20) + "px";222 className="tip-direction-right-top";223 } else {224 tip.style.left = (pos.left + 15) + "px";225 tip.style.top = (pos.top - 20) + "px";226 }227 } else {228 if(windowWidth-pos.left-30 < boxWidth){229 tip.style.left = (pos.left-boxWidth-20) + "px";230 if(windowHeight >= pos.bottom){//IE678 document.body.clientHeight bug231 tip.style.bottom = (windowHeight - pos.bottom - 20) + "px";232 className="tip-direction-right-bottom";233 } else {234 tip.style.top = (pos.top - 25) + "px";235 className="tip-direction-right-top";236 }237 } else {238 tip.style.left = (pos.left + 15) + "px";239 if(windowHeight >= pos.bottom){//IE678 document.body.clientHeight bug240 tip.style.bottom = (windowHeight - pos.bottom - 20) + "px";241 className="tip-direction-left-bottom";242 } else {243 tip.style.top = (pos.top - 25) + "px";244 className="tip-direction-left-top";245 }246 }247 }248 getElementsByClassName("tip-help-content",tip,"div")[0].innerHTML=this.innerHTML;249 tip.style.display = "block";250 if(direction.className.indexOf(className) == -1){251 direction.className+=" "+className;252 }253 };254 iconHelps[i].onmouseout=function(){255 var tip=getElementsByClassName("tip-help-wrap",document,"div")[0],256 direction=getElementsByClassName("tip-direction",tip,"div")[0];257 tip.style.display = "none";258 direction.className="tip-direction";259 };260 }261 }262 263 bindTip("icon-help");264 </script>265 </body>266 </html>效果：
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