经过几天的思考与不断的实践，做一个具体的作品时，应在动手之前先设计好开发项目的模型以及所要实现的功能，
觉不能一边在做一边去思考，否则，你会感觉到在做的过程中老是觉得对自己实现的样式感觉不满意，会对它不断地修改，
不断地尝试，此时，你会觉得很无奈，不仅无法使作品更好的完成，还会使自己变得浮躁。导致中途放弃。
就拿我做的页面来说吧！开始就只想简简单单的做一个网页，可是后面在做的过程中，感觉就想完善以下页面的功能以及美化一下页面，
可是导致后面困难重重，一时之间没法进行下去。总之困难还有的。希望大家一起完善这个网页大家一起交流。
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background: #1e282c;20 border-left-color: #3c8dbc; }21 .sidebar-menu > li > .treeview-menu {22 margin: 0 1px;23 background: #2c3b41; }24 .sidebar-menu > li .label,25 .sidebar-menu > li .badge {26 margin-top: 3px;27 margin-right: 5px; }28 .sidebar-menu li.header {29 padding: 10px 25px 10px 15px;30 font-size: 12px;31 color: #4b646f;32 background: #3434346; }33 .sidebar-menu li > a > .fa-angle-left {34 width: auto;35 height: auto;36 padding: 0;37 margin-right: 10px;38 margin-top: 3px; }39 .sidebar-menu li.active > a > .fa-angle-left {40 transform: rotate(-90deg); }41 .sidebar-menu li.active > .treeview-menu {42 display: block; }43 .sidebar-menu a {44 color: #b8c7ce;45 text-decoration: none; }46 .sidebar-menu .treeview-menu {47 display: none;48 list-style: none;49 padding: 0;50 margin: 0;51 padding-left: 5px; }52 .sidebar-menu .treeview-menu .treeview-menu {53 padding-left: 20px; }54 .sidebar-menu .treeview-menu > li {55 margin: 0; }56 .sidebar-menu .treeview-menu > li > a {57 padding: 5px 5px 5px 15px;58 display: block;59 font-size: 14px;60 color: #8aa4af; }61 .sidebar-menu .treeview-menu > li > a > .fa {62 width: 20px; }63 .sidebar-menu .treeview-menu > li > a > .fa-angle-left,64 .sidebar-menu .treeview-menu > li > a > .fa-angle-down {65 width: auto; }66 .sidebar-menu .treeview-menu > li.active > a, .sidebar-menu .treeview-menu > li > a:hover {67 color: #fff; } js code 1 $.sidebarMenu = function(menu) { 2 var animationSpeed = 300; 3 4 $(menu).on('click', 'li a', function(e) { 5 var $this = $(this); 6 var checkElement = $this.next(); 7 8 if (checkElement.is('.treeview-menu') && checkElement.is(':visible')) { 9 checkElement.slideUp(animationSpeed, function() {10 checkElement.removeClass('menu-open');11 });12 checkElement.parent("li").removeClass("active");13 }14 15 //If the menu is not visible16 else if ((checkElement.is('.treeview-menu')) && (!checkElement.is(':visible'))) {17 //Get the parent menu18 var parent = $this.parents('ul').first();19 //Close all open menus within the parent20 var ul = parent.find('ul:visible').slideUp(animationSpeed);21 //Remove the menu-open class from the parent22 ul.removeClass('menu-open');23 //Get the parent li24 var parent_li = $this.parent("li");25 26 //Open the target menu and add the menu-open class27 checkElement.slideDown(animationSpeed, function() {28 //Add the class active to the parent li29 checkElement.addClass('menu-open');30 parent.find('li.active').removeClass('active');31 parent_li.addClass('active');32 });33 }34 //if this isn't a link, prevent the page from being redirected35 if (checkElement.is('.treeview-menu')) {36 e.preventDefault();37 }38 });39 } " _ue_custom_node_="true">以上就是旅游网站首页的内容，更多相关内容请关注PHP中文网（m.sbmmt.com）！
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