Javascript 如何在选项卡中添加下拉菜单?
我在网站上完成了一个标签的创建,现在我想在我的任何标签上添加下拉菜单,我该怎么做 我的Jsf代码:Javascript 如何在选项卡中添加下拉菜单?,javascript,html,css,Javascript,Html,Css,我在网站上完成了一个标签的创建,现在我想在我的任何标签上添加下拉菜单,我该怎么做 我的Jsf代码: var tabLinks = new Array(); var contentDivs = new Array(); document.getElementsByTagName('body')[0].onload = basla(); function basla() { var tabListItems = document.getElementByI
var tabLinks = new Array();
var contentDivs = new Array();
document.getElementsByTagName('body')[0].onload = basla();
function basla() {
var tabListItems = document.getElementById('anatablar').children;
for ( var i = 0; i < tabListItems.length; i++ ) {
if ( tabListItems[i].nodeName == "LI" ) {
var tabLink = getFirstChildWithTagName1( tabListItems[i], 'A' );
var id = getHash1( tabLink.getAttribute('href') );
tabLinks[id] = tabLink;
contentDivs[id] = document.getElementById( id );
}
}
var i = 0;
for ( var id in tabLinks ) {
tabLinks[id].onclick = showTab1;
tabLinks[id].onfocus = function() { this.blur(); };
if ( i == 0 ) tabLinks[id].className = 'selected';
i++;
}
var i = 0;
for ( var id in contentDivs ) {
if ( i != 0 ) contentDivs[id].className = 'tabIcerik hide';
i++;
}
}
function showTab1() {
var selectedId = getHash1( this.getAttribute('href') );
for ( var id in contentDivs ) {
if ( id == selectedId ) {
console.log("Put a message here."+id);
tabLinks[id].className = 'selected';
contentDivs[id].className = 'tabIcerik';
} else {
tabLinks[id].className = '';
contentDivs[id].className = 'tabIcerik hide';
}
}
return false;
}
function getFirstChildWithTagName1( element, tagName ) {
for ( var i = 0; i < element.childNodes.length; i++ ) {
if ( element.childNodes[i].nodeName == tagName ) return element.childNodes[i];
}
}
function getHash1( url ) {
var hashPos = url.lastIndexOf ( '#' );
return url.substring( hashPos + 1 );
}
如何将下拉菜单添加到此表格?如“DOZ”选项卡中的站点所示
提前感谢。:) 使用库更容易做到这一点。 尝试引导。看一个例子 www.vademcumonline.com使用相同的方法;) 嘿, 这可以通过使用纯css,通过使用显示属性 在JSFIDLE上检查以下代码:
ul > li {display: block; float: left; margin-right: 10px; position: relative; background: Red; padding: 0.5em; line-height: 1em}
ul ul {display: none; width: 150px; position:absolute; top: 2em; left: 0}
ul ul > li {float: none;}
ul > li:hover > ul,
ul > a:hover + ul {display: block}
body { font-size: 80%; font-family: 'Lucida Grande', Verdana, Arial, Sans-Serif; }
ul#tabs { list-style-type: none; margin: 30px 0 0 0; padding: 0 0 0.3em 0; }
ul#tabs li { display: inline; }
ul#tabs li a { color: #42454a; background-color: #dedbde; border: 1px solid #c9c3ba; border-bottom: none; padding: 0.3em; text-decoration: none; }
ul#tabs li a:hover { background-color: #f1f0ee; }
ul#tabs li a.selected { color: #000; background-color: #f1f0ee; font-weight: bold; padding: 0.7em 0.3em 0.38em 0.3em; }
div.tabContent { border: 1px solid #c9c3ba; padding: 0.5em; background-color: #f1f0ee; }
div.tabContent.hide { display: none;
ul > li {display: block; float: left; margin-right: 10px; position: relative; background: Red; padding: 0.5em; line-height: 1em}
ul ul {display: none; width: 150px; position:absolute; top: 2em; left: 0}
ul ul > li {float: none;}
ul > li:hover > ul,
ul > a:hover + ul {display: block}