This is a relatively simple and practical menu, and the most important thing is that it does not need to reference the jQuery library. The menu can be adaptable in the vertical direction. When the main menu is close to the top, the submenu will be below, and when the main menu is close to the bottom, the submenu is above. Using Modernizr's touch detection function, we can make the response of the submenu hover on the pc and click on the touch device. The example also demonstrates how to adjust the layout with a relatively narrow width.
html code
<ul id="cbp-tm-menu"> <li> <a href="#">Home</a> </li> <li> <a href="#">Veggie made</a> <ul> <li><a href="#">Sorrel desert</a></li> <li><a href="#">Raisin kakadu</a></li> <li><a href="#">Plum salsify</a></li> <li><a href="#">Bok choy celtuce</a></li> <li><a href="#">Onion endive</a></li> <li><a href="#">Bitterleaf</a></li> <li><a href="#">Sea lettuce</a></li> </li> </li> <li> <a href="#">Pepper tatsoi</a> <ul> <li><a href="#">Brussels sprout</a></li> <li><a href="#">Kakadu lemon</a></li> <li><a href="#">Juice green</a></li> <li><a href="#">Wine fruit</a></li> <li><a href="#">Garlic mint</a></li> <li><a href="#">Zucchini garnish</a></li> <li><a href="#">Sea lettuce</a></li> </ul> </li> <li> <a href="#">Sweet melon</a> <ul> <li><a href="#">Sorrel desert</a></li> <li><a href="#">Raisin kakadu</a></li> <li><a href="#">Plum salsify</a></li> <li><a href="#">Bok choy celtuce</a></li> <li><a href="#">Onion endive</a></li> <li><a href="#">Bitterleaf</a></li> </li></ul>
css code
/* Iconfont made with icomoon.com */@font-face { font-family: 'cbp-tmicons'; src:url('../fonts/tmicons/cbp-tmicons.eot'); src:url('../fonts/tmicons/cbp-tmicons.eot?#iefix') format('embedded-opentype'), url('../fonts/tmicons/cbp-tmicons.woff') format('woff'), url('../fonts/tmicons/cbp-tmicons.ttf') format('truetype'), url('../fonts/tmicons/cbp-tmicons.svg#cbp-tmicons') format('svg'); font-weight: normal; font-style: normal;} /* reset list style */.cbp-tm-menu,.cbp-tm-menu ul { list-style: none;} /* set menu position; change here to set to relative or float, etc. */.cbp-tm-menu { display: block; position: absolute; z-index: 1000; bottom: 0; width: 100%; background: #47a3da; text-align: right; padding: 0 2em; margin: 0; text-transform: capitalize;} /* first level menu items */.cbp-tm-menu > li { display: inline-block; margin: 0 2.6em; position: relative;} .cbp-tm-menu > li > a { line-height: 4em; padding: 0 0.3em; font-size: 1.2em; display: block; color: #fff;} .no-touch .cbp-tm-menu > li > a:hover,.no-touch .cbp-tm-menu > li > a:active { color: #02639d;} /* sumbenu with transitions */.cbp-tm-submenu { position: absolute; display: block; visibility: hidden; opacity: 0; padding: 0; text-align: left; pointer-events: none; -webkit-transition: visibility 0s, opacity 0s; -moz-transition: visibility 0s, opacity 0s; transition: visibility 0s, opacity 0s;} .cbp-tm-show .cbp-tm-submenu { width: 16em; left: 50%; margin: 0 0 0 -8em; opacity: 1; visibility: visible; pointer-events: auto; -webkit-transition: visibility 0s, opacity 0.3s; -moz-transition: visibility 0s, opacity 0.3s; transition: visibility 0s, opacity 0.3s;} .cbp-tm-show-above .cbp-tm-submenu { bottom: 100%; padding-bottom: 10px;} .cbp-tm-show-below .cbp-tm-submenu { top: 100%; padding-top: 10px;} /* extreme cases: not enough space on the sides */.cbp-tm-nospace-right .cbp-tm-submenu { right: 0; left: auto;} .cbp-tm-nospace-left .cbp-tm-submenu { left: 0;} /* last menu item has to fit on the screen */.cbp-tm-menu > li:last-child .cbp-tm-submenu { right: 0;} /*arrow: depending on where the menu will be shown, we setthe right position for the arrow*/ .cbp-tm-submenu:after { border: solid transparent; content: " "; height: 0; width: 0; position: absolute; pointer-events: none;} .cbp-tm-show-above .cbp-tm-submenu:after { top: 100%; margin-top: -10px;} .cbp-tm-show-below .cbp-tm-submenu:after { bottom: 100%; margin-bottom: -10px;} .cbp-tm-submenu:after { border-color: transparent; border-width: 16px; margin-left: -16px; left: 50%;} .cbp-tm-show-above .cbp-tm-submenu:after { border-top-color: #fff;} .cbp-tm-show-below .cbp-tm-submenu:after { border-bottom-color: #fff;} .cbp-tm-submenu > li { display: block; background: #fff;} .cbp-tm-submenu > li > a { padding: 5px 2.3em 5px 0.6em; /* top/bottom paddings in 'em' cause a tiny "jump" in Chrome on Win */ display: block; font-size: 1.2em; position: relative; color: #47a3da; border: 4px solid #fff; -webkit-transition: all 0.2s; -moz-transition: all 0.2s; transition: all 0.2s;} .no-touch .cbp-tm-submenu > li > a:hover,.no-touch .cbp-tm-submenu > li > a:active { color: #fff; background: #47a3da;} /* the icons (main level menu icon and sublevel icons) */.cbp-tm-submenu li a:before,.cbp-tm-menu > li > a:before { font-family: 'cbp-tmicons'; speak: none; font-style: normal; font-weight: normal; font-variant: normal; text-transform: none; line-height: 1; vertical-align: middle; margin-right: 0.6em; -webkit-font-smoothing: antialiased;} .cbp-tm-submenu li a:before { position: absolute; top: 50%; margin-top: -0.5em; right: 0.5em;} .cbp-tm-menu > li > a:not(:only-child):before { content: "/f0c9"; font-size: 60%; opacity: 0.3;} .cbp-tm-icon-archive:before { content: "/e002";} .cbp-tm-icon-cog:before { content: "/e003";} .cbp-tm-icon-users:before { content: "/e004";} .cbp-tm-icon-earth:before { content: "/e005";} .cbp-tm-icon-location:before { content: "/e006";} .cbp-tm-icon-mobile:before { content: "/e007";} .cbp-tm-icon-screen:before { content: "/e008";} .cbp-tm-icon-mail:before { content: "/e009";} .cbp-tm-icon-contract:before { content: "/e00a";} .cbp-tm-icon-pencil:before { content: "/e00b";} .cbp-tm-icon-article:before { content: "/e00c";} .cbp-tm-icon-clock:before { content: "/e00d";} .cbp-tm-icon-videos:before { content: "/e00e";} .cbp-tm-icon-pictures:before { content: "/e00f";} .cbp-tm-icon-link:before { content: "/e010";} .cbp-tm-icon-refresh:before { content: "/e011";} .cbp-tm-icon-help:before { content: "/e012";} /* Media Queries */@media screen and (max-width: 55.6875em) { .cbp-tm-menu { font-size: 80%; }} @media screen and (max-height: 25.25em), screen and (max-width: 44.3125em) { .cbp-tm-menu { font-size: 100%; position: relative; text-align: center; padding: 0; top: auto; } .cbp-tm-menu > li { display: block; margin: 0; border-bottom: 4px solid #3793ca; } .cbp-tm-menu > li:first-child { border-top: 4px solid #3793ca; } li.cbp-tm-show > a, .no-touch .cbp-tm-menu > li > a:hover, .no-touch .cbp-tm-menu > li > a:active { color: #fff; background: #02639d; } .cbp-tm-submenu { position: relative; display: none; width: 100%; } .cbp-tm-submenu > li { padding: 0; } .cbp-tm-submenu > li > a { padding: 0.6em 2.3em 0.6em 0.6em; border: none; border-bottom: 2px solid #6fbbe9; } .cbp-tm-submenu:after { display: none; } .cbp-tm-menu .cbp-tm-show .cbp-tm-submenu { display: block; width: 100%; left: 0; margin: 0; padding: 0; bottom: auto; top: auto; } }javascript code
/** * cbpTooltipMenu.js v1.0.0 * http://www.codrops.com * * Licensed under the MIT license. * http://www.opensource.org/licenses/mit-license.php * * Copyright 2013, Codrops * http://www.codrops.com */;( function( window ) { 'use strict'; var document = window.document, docElem = document.documentElement; function extend( a, b ) { for( var key in b ) { if( b.hasOwnProperty( key ) ) { a[key] = b[key]; } } return a; } // from https://github.com/ryanve/response.js/blob/master/response.js function getViewportH() { var client = docElem['clientHeight'], inner = window['innerHeight']; if( client < inner ) return inner; else return client; } // http://stackoverflow.com/a/11396681/989439 function getOffset( el ) { return el.getBoundingClientRect(); } // http://snipplr.com/view.php?codeview&id=5259 function isMouseLeaveOrEnter(e, handler) { if (e.type != 'mouseout' && e.type != 'mouseover') return false; var reltg = e.relatedTarget ? e.relatedTarget : e.type == 'mouseout' ? e.toElement : e.fromElement; while (reltg && reltg != handler) reltg = reltg.parentNode; return (reltg != handler); } function cbpTooltipMenu( el, options ) { this.el = el; this.options = extend( this.defaults, options ); this._init(); } cbpTooltipMenu.prototype = { defaults : { // add a timeout to avoid the menu to open instantly delayMenu : 100 }, _init : function() { this.touch = Modernizr.touch; this.menuItems = document.querySelectorAll( '#' + this.el.id + ' > li' ); this._initEvents(); }, _initEvents : function() { var self = this; Array.prototype.slice.call( this.menuItems ).forEach( function( el, i ) { var trigger = el.querySelector( 'a' ); if( self.touch ) { trigger.addEventListener( 'click', function( ev ) { self._handleClick( this, ev ); } ); } else { trigger.addEventListener( 'click', function( ev ) { if( this.parentNode.querySelector( 'ul.cbp-tm-submenu' ) ) { ev.preventDefault(); } } ); el.addEventListener( 'mouseover', function(ev) { if( isMouseLeaveOrEnter( ev, this ) ) self._openMenu( this ); } ); el.addEventListener( 'mouseout', function(ev) { if( isMouseLeaveOrEnter( ev, this ) ) self._closeMenu( this ); } ); } } ); } } ); }, _openMenu : function( el ) { var self = this; clearTimeout( this.omtimeout ); this.omtimeout = setTimeout( function() { var submenu = el.querySelector( 'ul.cbp-tm-submenu' ); if( submenu ) { el.className = 'cbp-tm-show'; if( self._positionMenu( el ) === 'top' ) { el.className += ' cbp-tm-show-above'; } else { el.className += ' cbp-tm-show-below'; } } }, this.touch ? 0 : this.options.delayMenu ); }, _closeMenu : function( el ) { clearTimeout( this.omtimeout ); var submenu = el.querySelector( 'ul.cbp-tm-submenu' ); if( submenu ) { // based on https://github.com/desandro/classie/blob/master/classie.js el.className = el.className.replace(new RegExp("(^|//s+)" + "cbp-tm-show" + "(//s+|$)"), ' '); el.className = el.className.replace(new RegExp("(^|//s+)" + "cbp-tm-show-below" + "(//s+|$)"), ' '); el.className = el.className.replace(new RegExp("(^|//s+)" + "cbp-tm-show-below" + "(//s+|$)"), ' '); el.className = el.className.replace(new RegExp("(^|//s+)" + "cbp-tm-show-above" + "(//s+|$)"), ' '); } }, _handleClick : function( el, ev ) { var item = el.parentNode, items = Array.prototype.slice.call( this.menuItems ), submenu = item.querySelector( 'ul.cbp-tm-submenu' ) // first close any opened one.. if( this.current && items.indexOf( item ) !== this.current ) { this._closeMenu( this.el.children[ this.current ] ); this.el.children[ this.current ].querySelector( 'ul.cbp-tm-submenu' ).setAttribute( 'data-open', 'false' ); } if( submenu ) { ev.preventDefault(); var isOpen = submenu.getAttribute( 'data-open' ); if( isOpen === 'true' ) { this._closeMenu( item ); submenu.setAttribute( 'data-open', 'false' ); } else { this._openMenu( item ); this.current = items.indexOf( item ); submenu.setAttribute( 'data-open', 'true' ); } } }, _positionMenu : function( el ) { // checking where's more space left in the viewport: above or below the element var vH = getViewportH(), ot = getOffset(el), spaceUp = ot.top , spaceDown = vH - spaceUp - el.offsetHeight; return ( spaceDown <= spaceUp ? 'top' : 'bottom' ); } } // add to global namespace window.cbpTooltipMenu = cbpTooltipMenu; } )( window );The above is all the content of this article. I hope it will be helpful to everyone's learning and I hope everyone will support Wulin.com more.