我使用CSS display:表创建了主导航,如下所示:
下拉菜单的with不超过父级的宽度,这意味着如果下拉菜单中有一个长文本,则会被裁剪,如下图所示:
我如何使下拉菜单适应其孩子的宽度,而不是适应其父项的宽度,如下图所示:
因此,下拉菜单将拉伸以适合其父对象的宽度,如果其子对象的任何一个大于该宽度,则它们的宽度应增加以适应。
HTML:
<nav class="mainMenu">
<ul>
<li> <a <?php href( 'index.php');?>>Index</a>
</li>
<li> <a <?php href( 'modules.php');?>>Modules</a>
</li>
<li class="subMenu"> <a <?php href( 'page.php');?>>Dropdown</a>
<ul>
<li> <a <?php href( '');?>>Short Text</a>
</li>
<li> <a <?php href( '');?>>Dropdown Longer Text</a>
</li>
</ul>
</li>
<li class="subMenu"> <a <?php href( 'page.php');?>>Dropdown</a>
<ul>
<li> <a <?php href( '');?>>Sub menu item which is longer than its parent</a>
</li>
<li> <a <?php href( '');?>>Short Text</a>
</li>
</ul>
</li>
</ul>
</nav>
CSS:
/*Header*/
#header {
background-color: #fff;
width: 100%;
display: inline-block;
position: relative;
z-index: 10000;
}
/*Header > Content Container*/
#header .content {
width: 1024px;
padding: 0 20px;
margin: 0 auto;
position: relative;
}
/*Header > Main Menu*/
#header .mainMenu {
display: table;
float: right;
}
#header .mainMenu ul {
display: table-row;
position: relative;
}
#header .mainMenu ul li {
display: table-cell;
position: relative;
}
/*Header > Main Menu > Menu Links*/
#header .mainMenu ul li a {
padding: 10px 15px;
}
#header .mainMenu ul li a:hover {
color: #2B508F;
}
#header .mainMenu ul li a.active, #header .mainMenu ul li a.active:hover {
color: #fff;
background-color: #2B508F;
cursor: default !important;
}
/*Header > Main Menu > Dropdown Menus*/
#header .mainMenu ul ul {
background-color: #fff;
padding: 1px;
min-width: 100%;
position: absolute;
top: 100%;
left: 0;
text-align: left;
overflow: hidden;
z-index: 10000;
opacity: 0;
visibility: hidden;
pointer-events: none;
-webkit-transition: all .1s linear;
-moz-transition: all .1s linear;
-ms-transition: all .1s linear;
-o-transition: all .1s linear;
transition: all .1s linear;
}
#header .mainMenu ul li:hover > ul {
pointer-events: auto;
visibility: visible;
opacity: 1;
}
#header .mainMenu ul ul li {
width: 100%;
display: block;
}
/*Header > Main Menu > Dropdown Menu Links*/
#header .mainMenu ul ul li a {
display: block;
}
#header .mainMenu ul ul li a:hover {
}
#header .mainMenu ul ul li a.active, #header .mainMenu ul ul li a.active:hover {
}
/*Header > Main Menu > Dropdown Menu Parent Link*/
#header .mainMenu .subMenu:hover > a {
color: #2B508F;
}
#header .mainMenu .subMenu:hover > a.active {
color: #2B508F;
}
JSFiddle:http://jsfiddle.net/t2vp03ox/
最佳答案
我已经从position: absolute;
中删除了#header .mainMenu ul ul
,发现它工作正常...
关于html - 下拉菜单继承了其父级的宽度,如果子级的宽度大于父级的宽度,则会裁剪其子级,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/29720975/