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HTML ????
網(wǎng)站導(dǎo)航欄有下拉菜單，但是下拉菜單出現(xiàn)后會(huì)把下面的內(nèi)容頂下去，這個(gè)怎么辦？？？求大神_html/css_WEB-ITnose
網(wǎng)站導(dǎo)航欄有下拉菜單，但是下拉菜單出現(xiàn)后會(huì)把下面的內(nèi)容頂下去，這個(gè)怎么辦？？？求大神_html/css_WEB-ITnose
Jun 24, 2016 pm 12:26 PM
導(dǎo)航欄 下拉菜單 css定位
網(wǎng)站導(dǎo)航欄有下拉菜單，但是下拉菜單出現(xiàn)后會(huì)把下面的內(nèi)容頂下去，這個(gè)怎么辦？？？求大神回復(fù)討論(解決方案)
下拉層的css 加上position:absolute;z-index:999;
position:absolute 絕對(duì)定位，和上下文無(wú)關(guān)。
z-index:第幾層?，這個(gè)數(shù)要保證最大以覆蓋其它內(nèi)容。
下拉層的css 加上position:absolute;z-index:999;
position:absolute 絕對(duì)定位，和上下文無(wú)關(guān)。
z-index:第幾層?，這個(gè)數(shù)要保證最大以覆蓋其它內(nèi)容。
還是不行呀，我把下拉菜單ul加上
ul{display:none;position:absolute;z-index:999;}
代碼發(fā)多點(diǎn)。
代碼發(fā)多點(diǎn)。
.navbar-float{list-style-type:none;?border-right:1px?solid?#406b8d;?line-height:36px;}
#navbar-float-last{border:0px?solid?#024e70}
#navbar?ul{width:?100%;position:relative;right:1px;}
#navbar{height:36px;?filter:alpha(Opacity=130);-moz-opacity:0.5;opacity:?0.8;z-index:100;?background:#024e70;}
.navbar-float{float:left;?width:95px;?text-align:center;}
.navbar-float?a{color:white;}
.navbar-float?a:hover{position:relative;?top:1px;}
.navbar-float?ul{display:none;position:absolute;z-index:999;}
.navbar-float?ul?li{
width:150px;
background-color:#000;
text-align:left;
padding-left:5px;
list-style-type:disc;
list-style-position:inside;
filter:alpha(Opacity=130);
-moz-opacity:0.7;
opacity:0.98;?
z-index:999;
border-left:1px?solid?#024e70;
border-right:1px?solid?#024e70;
border-bottom:1px?dashed?#333;
}
<!-- 導(dǎo)航條開(kāi)始 --> <div id="navbar"> <ul> <!-- 首頁(yè)分類開(kāi)始 --> <li class="navbar-float"> <a href="#">首 頁(yè)</a> </li> <li class="navbar-float"> <a href="#" id="navbar-intro">學(xué)院簡(jiǎn)介</a> <ul> <li><a href="#">學(xué)院概況</a></li> <li><a href="#">歷屆領(lǐng)導(dǎo)</a></li> <li><a href="#">學(xué)院領(lǐng)導(dǎo)</a></li> <li><a href="#">辦公電話</a></li> </ul> </li> <!-- 首頁(yè)分類結(jié)束 --> <!-- 機(jī)構(gòu)設(shè)置分類開(kāi)始 --> <li class="navbar-float"> <a href="#" id="navbar-organ">機(jī)構(gòu)設(shè)置</a> <ul> <li><a href="#">黨政管理機(jī)構(gòu)</a></li> <li><a href="#">黨務(wù)機(jī)構(gòu)</a></li> <li><a href="#">行政機(jī)構(gòu)</a></li> <li><a href="#">教學(xué)機(jī)構(gòu)</a></li> <li><a href="#">系所設(shè)置</a></li> <li><a href="#">實(shí)驗(yàn)室</a></li> <li><a href="#">委員會(huì)</a></li> </ul> </li> <!-- 機(jī)構(gòu)設(shè)置分類結(jié)束 --> <!-- 師資隊(duì)伍分類開(kāi)始 --> <li class="navbar-float"> <a href="#" id="navbar-teachers">師資隊(duì)伍</a> <ul> <li><a href="#">教授</a></li> <li><a href="#">副教授</a></li> <li><a href="#">教師名錄</a></li> <li><a href="#">博士生導(dǎo)師</a></li> <li><a href="#">碩士生導(dǎo)師</a></li> </ul> </li> <!-- 師資隊(duì)伍分類結(jié)束 --> <!-- 教育工作分類開(kāi)始 --> <li class="navbar-float"> <a href="#" id="navbar-edu">教育工作</a> <ul> <li><a href="#">學(xué)生工作</a></li> <li><a href="#">本科教育</a></li> <li><a href="#">研究生工作</a></li> </ul> </li> <!-- 教育工作分類結(jié)束 --> <!-- 質(zhì)量工程分類開(kāi)始 --> <li class="navbar-float"><a href="#">質(zhì)量工程</a></li> <!-- 質(zhì)量工程分類結(jié)束 --> <!-- 學(xué)科建設(shè)分類開(kāi)始 --> <li class="navbar-float"><a href="#">學(xué)科建設(shè)</a></li> <!-- 學(xué)科建設(shè)分類結(jié)束 --> <!-- 科學(xué)研究分類開(kāi)始 --> <li class="navbar-float"><a href="#">科學(xué)研究</a></li> <!-- 科學(xué)研究分類結(jié)束 --> <!-- 招生就業(yè)分類開(kāi)始 --> <li class="navbar-float"><a href="#">招生就業(yè)</a></li> <!-- 招生就業(yè)分類結(jié)束 --> <!-- 合作交流分類開(kāi)始 --> <li class="navbar-float" id="navbar-float-last"><a href="#">合作交流</a></li> <!-- 合作交流分類結(jié)束 --> </ul> </div> <!-- 導(dǎo)航條結(jié)束 -->
你不能發(fā)多點(diǎn)代碼嗎?js部分呢。
你不能發(fā)多點(diǎn)代碼嗎?js部分呢。
// 通過(guò)id獲得節(jié)點(diǎn)function $(id){ return document.getElementById(id);}// 獲取兄弟節(jié)點(diǎn)function brothers(elem) { var r = []; var n = elem.parentNode.firstChild; for ( ; n; n = n.nextSibling ) { if ( n.nodeType === 1 && n !== elem ) { r.push( n ); } } return r;}//----------------------------------// 導(dǎo)航欄//----------------------------------// 鼠標(biāo)移動(dòng)到導(dǎo)航欄上function mouse_over_navbar(id) { // 獲得菜單分類的下一個(gè)兄弟節(jié)點(diǎn) var child = brothers($(id)); child[0].style.display = "block";}// 鼠標(biāo)移開(kāi)導(dǎo)航欄的下拉菜單function mouse_out_navmenu(id) { // 獲得菜單分類的下一個(gè)兄弟節(jié)點(diǎn) var child = brothers($(id)); child[0].style.display = "none";}// 鼠標(biāo)移開(kāi)導(dǎo)航欄的下拉菜單function get_menu_node(id) { // 獲得菜單分類的下一個(gè)兄弟節(jié)點(diǎn) var child = brothers($(id)); return child[0];}function hide_menu(which) { which.style.display = 'none';}// 獲得導(dǎo)航欄下拉菜單// 綁定事件window.onload = function(){ // 導(dǎo)航欄有下拉列表的id值 var navid1 = "navbar-intro"; var navid2 = "navbar-organ"; var navid3 = "navbar-teachers"; var navid4 = "navbar-edu"; // 綁定鼠標(biāo)經(jīng)過(guò)導(dǎo)航欄的事件 $(navid1).onmouseover = function() { mouse_over_navbar(navid1); } $(navid2).onmouseover = function() { mouse_over_navbar(navid2); } $(navid3).onmouseover = function() { mouse_over_navbar(navid3); } $(navid4).onmouseover = function() { mouse_over_navbar(navid4); } } javascript我只是在鼠標(biāo)移動(dòng)到導(dǎo)航欄時(shí)修改了display屬性為block
XML/HTML code?1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374 ……
第一個(gè)ul標(biāo)簽我用的position:relative修飾了，然后會(huì)不會(huì)對(duì)他里面的ul標(biāo)簽產(chǎn)生影響
<!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"><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><head><style type="text/css">.navbar-float{list-style-type:none; border-right:1px solid #406b8d; line-height:36px;}#navbar-float-last{border:0px solid #024e70}#navbar ul{width: 100%;right:1px;}#navbar{height:36px; filter:alpha(Opacity=130);-moz-opacity:0.5;opacity: 0.8;z-index:100; background:#024e70;}.navbar-float{float:left; width:95px; text-align:center;position:Relative}.navbar-float a{color:white;}.navbar-float a:hover{ top:1px;}.navbar-float ul{display:none;position:absolute;z-index:999;}.navbar-float ul li{width:150px;background-color:#000;text-align:left;padding-left:5px;list-style-type:disc;list-style-position:inside;filter:alpha(Opacity=130);-moz-opacity:0.7;opacity:0.98; z-index:999;border-left:1px solid #024e70;border-right:1px solid #024e70;border-bottom:1px dashed #333;</style> <script type="text/javascript"> function $(id){ return document.getElementById(id);} // 獲取兄弟節(jié)點(diǎn)function brothers(elem) { var r = []; var n = elem.parentNode.firstChild; for ( ; n; n = n.nextSibling ) { if ( n.nodeType === 1 && n !== elem ) { r.push( n ); } } return r;}//----------------------------------// 導(dǎo)航欄//---------------------------------- // 鼠標(biāo)移動(dòng)到導(dǎo)航欄上function mouse_over_navbar(id) { // 獲得菜單分類的下一個(gè)兄弟節(jié)點(diǎn) var child = brothers($(id)); console.log(child[0]); child[0].style.display = "block";} // 鼠標(biāo)移開(kāi)導(dǎo)航欄的下拉菜單function mouse_out_navmenu(id) { // 獲得菜單分類的下一個(gè)兄弟節(jié)點(diǎn) var child = brothers($(id)); child[0].style.display = "none";} // 鼠標(biāo)移開(kāi)導(dǎo)航欄的下拉菜單function get_menu_node(id) { // 獲得菜單分類的下一個(gè)兄弟節(jié)點(diǎn) var child = brothers($(id)); return child[0];} function hide_menu(which) { which.style.display = 'none';} // 獲得導(dǎo)航欄下拉菜單// 綁定事件window.onload = function(){ // 導(dǎo)航欄有下拉列表的id值 var navid1 = "navbar-intro"; var navid2 = "navbar-organ"; var navid3 = "navbar-teachers"; var navid4 = "navbar-edu"; // 綁定鼠標(biāo)經(jīng)過(guò)導(dǎo)航欄的事件 $(navid1).onmouseover = function() { mouse_over_navbar(navid1); } $(navid1).onmouseout = function() { mouse_out_navmenu(navid1); } $(navid2).onmouseover = function() { mouse_over_navbar(navid2); } $(navid2).onmouseout = function() { mouse_out_navmenu(navid2); } $(navid3).onmouseover = function() { mouse_over_navbar(navid3); } $(navid3).onmouseout = function() { mouse_out_navmenu(navid3); } $(navid4).onmouseover = function() { mouse_over_navbar(navid4); } $(navid4).onmouseout = function() { mouse_out_navmenu(navid4); } } </script> </head> <body><!-- 導(dǎo)航條開(kāi)始 --> <div id="navbar"> <ul> <!-- 首頁(yè)分類開(kāi)始 --> <li class="navbar-float"> <a href="#">首 頁(yè)</a> </li> <li class="navbar-float"> <a href="#" id="navbar-intro">學(xué)院簡(jiǎn)介</a> <ul> <li><a href="#">學(xué)院概況</a></li> <li><a href="#">歷屆領(lǐng)導(dǎo)</a></li> <li><a href="#">學(xué)院領(lǐng)導(dǎo)</a></li> <li><a href="#">辦公電話</a></li> </ul> </li> <!-- 首頁(yè)分類結(jié)束 --> <!-- 機(jī)構(gòu)設(shè)置分類開(kāi)始 --> <li class="navbar-float"> <a href="#" id="navbar-organ">機(jī)構(gòu)設(shè)置</a> <ul> <li><a href="#">黨政管理機(jī)構(gòu)</a></li> <li><a href="#">黨務(wù)機(jī)構(gòu)</a></li> <li><a href="#">行政機(jī)構(gòu)</a></li> <li><a href="#">教學(xué)機(jī)構(gòu)</a></li> <li><a href="#">系所設(shè)置</a></li> <li><a href="#">實(shí)驗(yàn)室</a></li> <li><a href="#">委員會(huì)</a></li> </ul> </li> <!-- 機(jī)構(gòu)設(shè)置分類結(jié)束 --> <!-- 師資隊(duì)伍分類開(kāi)始 --> <li class="navbar-float"> <a href="#" id="navbar-teachers">師資隊(duì)伍</a> <ul> <li><a href="#">教授</a></li> <li><a href="#">副教授</a></li> <li><a href="#">教師名錄</a></li> <li><a href="#">博士生導(dǎo)師</a></li> <li><a href="#">碩士生導(dǎo)師</a></li> </ul> </li> <!-- 師資隊(duì)伍分類結(jié)束 --> <!-- 教育工作分類開(kāi)始 --> <li class="navbar-float"> <a href="#" id="navbar-edu">教育工作</a> <ul> <li><a href="#">學(xué)生工作</a></li> <li><a href="#">本科教育</a></li> <li><a href="#">研究生工作</a></li> </ul> </li> <!-- 教育工作分類結(jié)束 --> <!-- 質(zhì)量工程分類開(kāi)始 --> <li class="navbar-float"><a href="#">質(zhì)量工程</a></li> <!-- 質(zhì)量工程分類結(jié)束 --> <!-- 學(xué)科建設(shè)分類開(kāi)始 --> <li class="navbar-float"><a href="#">學(xué)科建設(shè)</a></li> <!-- 學(xué)科建設(shè)分類結(jié)束 --> <!-- 科學(xué)研究分類開(kāi)始 --> <li class="navbar-float"><a href="#">科學(xué)研究</a></li> <!-- 科學(xué)研究分類結(jié)束 --> <!-- 招生就業(yè)分類開(kāi)始 --> <li class="navbar-float"><a href="#">招生就業(yè)</a></li> <!-- 招生就業(yè)分類結(jié)束 --> <!-- 合作交流分類開(kāi)始 --> <li class="navbar-float" id="navbar-float-last"><a href="#">合作交流</a></li> <!-- 合作交流分類結(jié)束 --> </ul> </div> <!-- 導(dǎo)航條結(jié)束 --> <br>abcde <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 <br>123123123 </body></html> JavaScript?code?123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990……
謝謝大神
樓主，還在嗎？我也遇到這個(gè)問(wèn)題了，能不能告訴我怎么解決呢？
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Jul 07, 2025 am 02:31 AM
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Jul 02, 2025 pm 02:55 PM
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Jul 04, 2025 am 03:16 AM
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