cssmenu中的中心元素

Question

我有这个css代码......

＆＃13;

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@import url(http://fonts.googleapis.com/css?family=Montserrat:400,700);
#cssmenu,
#cssmenu ul,
#cssmenu ul li,
#cssmenu ul li a,
#cssmenu #menu-button {
  margin: 0;
  padding: 0;
  border: 0;
  list-style: none;
  line-height: 1;
  display: block;
  position: relative;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}
#cssmenu:after,
#cssmenu > ul:after {
  content: ".";
  display: block;
  clear: both;
  visibility: hidden;
  line-height: 0;
  height: 0;
}
#cssmenu #menu-button {
  display: none;
}
#cssmenu {
  font-family: Montserrat, sans-serif;
  background: #333333;
}
#cssmenu > ul > li {
  float: left;
}
#cssmenu.align-center > ul {
  font-size: 0;
  text-align: center;
}
#cssmenu.align-center > ul > li {
  display: inline-block;
  float: none;
}
#cssmenu.align-center ul ul {
  text-align: left;
}
#cssmenu.align-right > ul > li {
  float: right;
}
#cssmenu > ul > li > a {
  padding: 17px;
  font-size: 12px;
  letter-spacing: 1px;
  text-decoration: none;
  color: #dddddd;
  font-weight: 700;
  text-transform: uppercase;
}
#cssmenu > ul > li:hover > a {
  color: #ffffff;
}
#cssmenu > ul > li.has-sub > a {
  padding-right: 30px;
}
#cssmenu > ul > li.has-sub > a:after {
  position: absolute;
  top: 22px;
  right: 11px;
  width: 8px;
  height: 2px;
  display: block;
  background: #dddddd;
  content: '';
}
#cssmenu > ul > li.has-sub > a:before {
  position: absolute;
  top: 19px;
  right: 14px;
  display: block;
  width: 2px;
  height: 8px;
  background: #dddddd;
  content: '';
  -webkit-transition: all .25s ease;
  -moz-transition: all .25s ease;
  -ms-transition: all .25s ease;
  -o-transition: all .25s ease;
  transition: all .25s ease;
}
#cssmenu > ul > li.has-sub:hover > a:before {
  top: 23px;
  height: 0;
}
#cssmenu ul ul {
  position: absolute;
  left: -9999px;
}
#cssmenu.align-right ul ul {
  text-align: right;
}
#cssmenu ul ul li {
  height: 0;
  -webkit-transition: all .25s ease;
  -moz-transition: all .25s ease;
  -ms-transition: all .25s ease;
  -o-transition: all .25s ease;
  transition: all .25s ease;
}
#cssmenu li:hover > ul {
  left: auto;
}
#cssmenu.align-right li:hover > ul {
  left: auto;
  right: 0;
}
#cssmenu li:hover > ul > li {
  height: 35px;
}
#cssmenu ul ul ul {
  margin-left: 100%;
  top: 0;
}
#cssmenu.align-right ul ul ul {
  margin-left: 0;
  margin-right: 100%;
}
#cssmenu ul ul li a {
  border-bottom: 1px solid rgba(150, 150, 150, 0.15);
  padding: 11px 15px;
  width: 170px;
  font-size: 12px;
  text-decoration: none;
  color: #dddddd;
  font-weight: 400;
  background: #333333;
}
#cssmenu ul ul li:last-child > a,
#cssmenu ul ul li.last-item > a {
  border-bottom: 0;
}
#cssmenu ul ul li:hover > a,
#cssmenu ul ul li a:hover {
  color: #ffffff;
}
#cssmenu ul ul li.has-sub > a:after {
  position: absolute;
  top: 16px;
  right: 11px;
  width: 8px;
  height: 2px;
  display: block;
  background: #dddddd;
  content: '';
}
#cssmenu.align-right ul ul li.has-sub > a:after {
  right: auto;
  left: 11px;
}
#cssmenu ul ul li.has-sub > a:before {
  position: absolute;
  top: 13px;
  right: 14px;
  display: block;
  width: 2px;
  height: 8px;
  background: #dddddd;
  content: '';
  -webkit-transition: all .25s ease;
  -moz-transition: all .25s ease;
  -ms-transition: all .25s ease;
  -o-transition: all .25s ease;
  transition: all .25s ease;
}
#cssmenu.align-right ul ul li.has-sub > a:before {
  right: auto;
  left: 14px;
}
#cssmenu ul ul > li.has-sub:hover > a:before {
  top: 17px;
  height: 0;
}
@media all and (max-width: 768px), only screen and (-webkit-min-device-pixel-ratio: 2) and (max-width: 1024px), only screen and (min--moz-device-pixel-ratio: 2) and (max-width: 1024px), only screen and (-o-min-device-pixel-ratio: 2/1) and (max-width: 1024px), only screen and (min-device-pixel-ratio: 2) and (max-width: 1024px), only screen and (min-resolution: 192dpi) and (max-width: 1024px), only screen and (min-resolution: 2dppx) and (max-width: 1024px) {
  #cssmenu {
    width: 100%;
  }
  #cssmenu ul {
    width: 100%;
    display: none;
  }
  #cssmenu.align-center > ul {
    text-align: left;
  }
  #cssmenu ul li {
    width: 100%;
    border-top: 1px solid rgba(120, 120, 120, 0.2);
  }
  #cssmenu ul ul li,
  #cssmenu li:hover > ul > li {
    height: auto;
  }
  #cssmenu ul li a,
  #cssmenu ul ul li a {
    width: 100%;
    border-bottom: 0;
  }
  #cssmenu > ul > li {
    float: none;
  }
  #cssmenu ul ul li a {
    padding-left: 25px;
  }
  #cssmenu ul ul ul li a {
    padding-left: 35px;
  }
  #cssmenu ul ul li a {
    color: #dddddd;
    background: none;
  }
  #cssmenu ul ul li:hover > a,
  #cssmenu ul ul li.active > a {
    color: #ffffff;
  }
  #cssmenu ul ul,
  #cssmenu ul ul ul,
  #cssmenu.align-right ul ul {
    position: relative;
    left: 0;
    width: 100%;
    margin: 0;
    text-align: left;
  }
  #cssmenu > ul > li.has-sub > a:after,
  #cssmenu > ul > li.has-sub > a:before,
  #cssmenu ul ul > li.has-sub > a:after,
  #cssmenu ul ul > li.has-sub > a:before {
    display: none;
  }
  #cssmenu #menu-button {
    display: block;
    padding: 17px;
    color: #dddddd;
    cursor: pointer;
    font-size: 12px;
    text-transform: uppercase;
    font-weight: 700;
  }
  #cssmenu #menu-button:after {
    position: absolute;
    top: 22px;
    right: 17px;
    display: block;
    height: 4px;
    width: 20px;
    border-top: 2px solid #dddddd;
    border-bottom: 2px solid #dddddd;
    content: '';
  }
  #cssmenu #menu-button:before {
    position: absolute;
    top: 16px;
    right: 17px;
    display: block;
    height: 2px;
    width: 20px;
    background: #dddddd;
    content: '';
  }
  #cssmenu #menu-button.menu-opened:after {
    top: 23px;
    border: 0;
    height: 2px;
    width: 15px;
    background: #ffffff;
    -webkit-transform: rotate(45deg);
    -moz-transform: rotate(45deg);
    -ms-transform: rotate(45deg);
    -o-transform: rotate(45deg);
    transform: rotate(45deg);
  }
  #cssmenu #menu-button.menu-opened:before {
    top: 23px;
    background: #ffffff;
    width: 15px;
    -webkit-transform: rotate(-45deg);
    -moz-transform: rotate(-45deg);
    -ms-transform: rotate(-45deg);
    -o-transform: rotate(-45deg);
    transform: rotate(-45deg);
  }
  #cssmenu .submenu-button {
    position: absolute;
    z-index: 99;
    right: 0;
    top: 0;
    display: block;
    border-left: 1px solid rgba(120, 120, 120, 0.2);
    height: 46px;
    width: 46px;
    cursor: pointer;
  }
  #cssmenu .submenu-button.submenu-opened {
    background: #262626;
  }
  #cssmenu ul ul .submenu-button {
    height: 34px;
    width: 34px;
  }
  #cssmenu .submenu-button:after {
    position: absolute;
    top: 22px;
    right: 19px;
    width: 8px;
    height: 2px;
    display: block;
    background: #dddddd;
    content: '';
  }
  #cssmenu ul ul .submenu-button:after {
    top: 15px;
    right: 13px;
  }
  #cssmenu .submenu-button.submenu-opened:after {
    background: #ffffff;
  }
  #cssmenu .submenu-button:before {
    position: absolute;
    top: 19px;
    right: 22px;
    display: block;
    width: 2px;
    height: 8px;
    background: #dddddd;
    content: '';
  }
  #cssmenu ul ul .submenu-button:before {
    top: 12px;
    right: 16px;
  }
  #cssmenu .submenu-button.submenu-opened:before {
    display: none;
  }
}

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...和这个HTML代码：

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<div id='cssmenu'>
<ul>
   <li><a href='#'>Home</a></li>
   <li class='active'><a href='#'>Products</a>
      <ul>
         <li><a href='#'>Product 1</a>
            <ul>
               <li><a href='#'>Sub Product</a></li>
               <li><a href='#'>Sub Product</a></li>
            </ul>
         </li>
         <li><a href='#'>Product 2</a>
            <ul>
               <li><a href='#'>Sub Product</a></li>
               <li><a href='#'>Sub Product</a></li>
            </ul>
         </li>
      </ul>
   </li>
   <li><a href='#'>About</a></li>
   <li><a href='#'>Contact</a></li>
</ul>
</div>

＆＃13;

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我还没有编写这段代码，所以我想知道如何让菜单中的元素集中在菜单本身？我可以摆脱菜单左侧和右侧的空白区域吗？

提前致谢

Answer 1

您需要将text-align: center样式应用于<ul>，并将float: left替换为您display: inline-block的{​​{1}}，如下所示：

<li>

@import url(http://fonts.googleapis.com/css?family=Montserrat:400,700);
#cssmenu,
#cssmenu ul,
#cssmenu ul li,
#cssmenu ul li a,
#cssmenu #menu-button {
  margin: 0;
  padding: 0;
  border: 0;
  list-style: none;
  line-height: 1;
  display: block;
  position: relative;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
    text-align: center;
}
#cssmenu:after,
#cssmenu > ul:after {
  content: ".";
  display: block;
  clear: both;
  visibility: hidden;
  line-height: 0;
  height: 0;
}
#cssmenu #menu-button {
  display: none;
}
#cssmenu {
  font-family: Montserrat, sans-serif;
  background: #333333;
}
#cssmenu > ul > li {
  display: inline-block;
}
#cssmenu.align-center > ul {
  font-size: 0;
  text-align: center;
}
#cssmenu.align-center > ul > li {
  display: inline-block;
  float: none;
}
#cssmenu.align-center ul ul {
  text-align: left;
}
#cssmenu.align-right > ul > li {
  float: right;
}
#cssmenu > ul > li > a {
  padding: 17px;
  font-size: 12px;
  letter-spacing: 1px;
  text-decoration: none;
  color: #dddddd;
  font-weight: 700;
  text-transform: uppercase;
}
#cssmenu > ul > li:hover > a {
  color: #ffffff;
}
#cssmenu > ul > li.has-sub > a {
  padding-right: 30px;
}
#cssmenu > ul > li.has-sub > a:after {
  position: absolute;
  top: 22px;
  right: 11px;
  width: 8px;
  height: 2px;
  display: block;
  background: #dddddd;
  content: '';
}
#cssmenu > ul > li.has-sub > a:before {
  position: absolute;
  top: 19px;
  right: 14px;
  display: block;
  width: 2px;
  height: 8px;
  background: #dddddd;
  content: '';
  -webkit-transition: all .25s ease;
  -moz-transition: all .25s ease;
  -ms-transition: all .25s ease;
  -o-transition: all .25s ease;
  transition: all .25s ease;
}
#cssmenu > ul > li.has-sub:hover > a:before {
  top: 23px;
  height: 0;
}
#cssmenu ul ul {
  position: absolute;
  left: -9999px;
}
#cssmenu.align-right ul ul {
  text-align: right;
}
#cssmenu ul ul li {
  height: 0;
  -webkit-transition: all .25s ease;
  -moz-transition: all .25s ease;
  -ms-transition: all .25s ease;
  -o-transition: all .25s ease;
  transition: all .25s ease;
}
#cssmenu li:hover > ul {
  left: auto;
}
#cssmenu.align-right li:hover > ul {
  left: auto;
  right: 0;
}
#cssmenu li:hover > ul > li {
  height: 35px;
}
#cssmenu ul ul ul {
  margin-left: 100%;
  top: 0;
}
#cssmenu.align-right ul ul ul {
  margin-left: 0;
  margin-right: 100%;
}
#cssmenu ul ul li a {
  border-bottom: 1px solid rgba(150, 150, 150, 0.15);
  padding: 11px 15px;
  width: 170px;
  font-size: 12px;
  text-decoration: none;
  color: #dddddd;
  font-weight: 400;
  background: #333333;
}
#cssmenu ul ul li:last-child > a,
#cssmenu ul ul li.last-item > a {
  border-bottom: 0;
}
#cssmenu ul ul li:hover > a,
#cssmenu ul ul li a:hover {
  color: #ffffff;
}
#cssmenu ul ul li.has-sub > a:after {
  position: absolute;
  top: 16px;
  right: 11px;
  width: 8px;
  height: 2px;
  display: block;
  background: #dddddd;
  content: '';
}
#cssmenu.align-right ul ul li.has-sub > a:after {
  right: auto;
  left: 11px;
}
#cssmenu ul ul li.has-sub > a:before {
  position: absolute;
  top: 13px;
  right: 14px;
  display: block;
  width: 2px;
  height: 8px;
  background: #dddddd;
  content: '';
  -webkit-transition: all .25s ease;
  -moz-transition: all .25s ease;
  -ms-transition: all .25s ease;
  -o-transition: all .25s ease;
  transition: all .25s ease;
}
#cssmenu.align-right ul ul li.has-sub > a:before {
  right: auto;
  left: 14px;
}
#cssmenu ul ul > li.has-sub:hover > a:before {
  top: 17px;
  height: 0;
}
@media all and (max-width: 768px), only screen and (-webkit-min-device-pixel-ratio: 2) and (max-width: 1024px), only screen and (min--moz-device-pixel-ratio: 2) and (max-width: 1024px), only screen and (-o-min-device-pixel-ratio: 2/1) and (max-width: 1024px), only screen and (min-device-pixel-ratio: 2) and (max-width: 1024px), only screen and (min-resolution: 192dpi) and (max-width: 1024px), only screen and (min-resolution: 2dppx) and (max-width: 1024px) {
  #cssmenu {
    width: 100%;
  }
  #cssmenu ul {
    width: 100%;
    display: none;
  }
  #cssmenu.align-center > ul {
    text-align: left;
  }
  #cssmenu ul li {
    width: 100%;
    border-top: 1px solid rgba(120, 120, 120, 0.2);
  }
  #cssmenu ul ul li,
  #cssmenu li:hover > ul > li {
    height: auto;
  }
  #cssmenu ul li a,
  #cssmenu ul ul li a {
    width: 100%;
    border-bottom: 0;
  }
  #cssmenu > ul > li {
    float: none;
  }
  #cssmenu ul ul li a {
    padding-left: 25px;
  }
  #cssmenu ul ul ul li a {
    padding-left: 35px;
  }
  #cssmenu ul ul li a {
    color: #dddddd;
    background: none;
  }
  #cssmenu ul ul li:hover > a,
  #cssmenu ul ul li.active > a {
    color: #ffffff;
  }
  #cssmenu ul ul,
  #cssmenu ul ul ul,
  #cssmenu.align-right ul ul {
    position: relative;
    left: 0;
    width: 100%;
    margin: 0;
    text-align: left;
  }
  #cssmenu > ul > li.has-sub > a:after,
  #cssmenu > ul > li.has-sub > a:before,
  #cssmenu ul ul > li.has-sub > a:after,
  #cssmenu ul ul > li.has-sub > a:before {
    display: none;
  }
  #cssmenu #menu-button {
    display: block;
    padding: 17px;
    color: #dddddd;
    cursor: pointer;
    font-size: 12px;
    text-transform: uppercase;
    font-weight: 700;
  }
  #cssmenu #menu-button:after {
    position: absolute;
    top: 22px;
    right: 17px;
    display: block;
    height: 4px;
    width: 20px;
    border-top: 2px solid #dddddd;
    border-bottom: 2px solid #dddddd;
    content: '';
  }
  #cssmenu #menu-button:before {
    position: absolute;
    top: 16px;
    right: 17px;
    display: block;
    height: 2px;
    width: 20px;
    background: #dddddd;
    content: '';
  }
  #cssmenu #menu-button.menu-opened:after {
    top: 23px;
    border: 0;
    height: 2px;
    width: 15px;
    background: #ffffff;
    -webkit-transform: rotate(45deg);
    -moz-transform: rotate(45deg);
    -ms-transform: rotate(45deg);
    -o-transform: rotate(45deg);
    transform: rotate(45deg);
  }
  #cssmenu #menu-button.menu-opened:before {
    top: 23px;
    background: #ffffff;
    width: 15px;
    -webkit-transform: rotate(-45deg);
    -moz-transform: rotate(-45deg);
    -ms-transform: rotate(-45deg);
    -o-transform: rotate(-45deg);
    transform: rotate(-45deg);
  }
  #cssmenu .submenu-button {
    position: absolute;
    z-index: 99;
    right: 0;
    top: 0;
    display: block;
    border-left: 1px solid rgba(120, 120, 120, 0.2);
    height: 46px;
    width: 46px;
    cursor: pointer;
  }
  #cssmenu .submenu-button.submenu-opened {
    background: #262626;
  }
  #cssmenu ul ul .submenu-button {
    height: 34px;
    width: 34px;
  }
  #cssmenu .submenu-button:after {
    position: absolute;
    top: 22px;
    right: 19px;
    width: 8px;
    height: 2px;
    display: block;
    background: #dddddd;
    content: '';
  }
  #cssmenu ul ul .submenu-button:after {
    top: 15px;
    right: 13px;
  }
  #cssmenu .submenu-button.submenu-opened:after {
    background: #ffffff;
  }
  #cssmenu .submenu-button:before {
    position: absolute;
    top: 19px;
    right: 22px;
    display: block;
    width: 2px;
    height: 8px;
    background: #dddddd;
    content: '';
  }
  #cssmenu ul ul .submenu-button:before {
    top: 12px;
    right: 16px;
  }
  #cssmenu .submenu-button.submenu-opened:before {
    display: none;
  }
}

<强> jsFiddle Demo

如果你想摆脱导航菜单中空的左/右空格，那么你应该使用上面的样式，然后将<div id='cssmenu'> <ul> <li><a href='#'>Home</a> </li> <li class='active'><a href='#'>Products</a> <ul> <li><a href='#'>Product 1</a> <ul> <li><a href='#'>Sub Product</a> </li> <li><a href='#'>Sub Product</a> </li> </ul> </li> <li><a href='#'>Product 2</a> <ul> <li><a href='#'>Sub Product</a> </li> <li><a href='#'>Sub Product</a> </li> </ul> </li> </ul> </li> <li><a href='#'>About</a> </li> <li><a href='#'>Contact</a> </li> </ul> </div>应用到width div并居中使用#cssmenu的菜单，如下所示：

margin: 0px auto

@import url(http://fonts.googleapis.com/css?family=Montserrat:400, 700);
 #cssmenu, #cssmenu ul, #cssmenu ul li, #cssmenu ul li a, #cssmenu #menu-button {
    margin: 0;
    padding: 0;
    border: 0;
    list-style: none;
    line-height: 1;
    display: block;
    position: relative;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    text-align: center;
}
#cssmenu:after, #cssmenu > ul:after {
    content:".";
    display: block;
    clear: both;
    visibility: hidden;
    line-height: 0;
    height: 0;
}
#cssmenu #menu-button {
    display: none;
}
#cssmenu {
    font-family: Montserrat, sans-serif;
    background: #333333;
    width: 40%;
    margin: 0px auto;
}
#cssmenu > ul > li {
    display: inline-block;
}
#cssmenu.align-center > ul {
    font-size: 0;
    text-align: center;
}
#cssmenu.align-center > ul > li {
    display: inline-block;
    float: none;
}
#cssmenu.align-center ul ul {
    text-align: left;
}
#cssmenu.align-right > ul > li {
    float: right;
}
#cssmenu > ul > li > a {
    padding: 17px;
    font-size: 12px;
    letter-spacing: 1px;
    text-decoration: none;
    color: #dddddd;
    font-weight: 700;
    text-transform: uppercase;
}
#cssmenu > ul > li:hover > a {
    color: #ffffff;
}
#cssmenu > ul > li.has-sub > a {
    padding-right: 30px;
}
#cssmenu > ul > li.has-sub > a:after {
    position: absolute;
    top: 22px;
    right: 11px;
    width: 8px;
    height: 2px;
    display: block;
    background: #dddddd;
    content:'';
}
#cssmenu > ul > li.has-sub > a:before {
    position: absolute;
    top: 19px;
    right: 14px;
    display: block;
    width: 2px;
    height: 8px;
    background: #dddddd;
    content:'';
    -webkit-transition: all .25s ease;
    -moz-transition: all .25s ease;
    -ms-transition: all .25s ease;
    -o-transition: all .25s ease;
    transition: all .25s ease;
}
#cssmenu > ul > li.has-sub:hover > a:before {
    top: 23px;
    height: 0;
}
#cssmenu ul ul {
    position: absolute;
    left: -9999px;
}
#cssmenu.align-right ul ul {
    text-align: right;
}
#cssmenu ul ul li {
    height: 0;
    -webkit-transition: all .25s ease;
    -moz-transition: all .25s ease;
    -ms-transition: all .25s ease;
    -o-transition: all .25s ease;
    transition: all .25s ease;
}
#cssmenu li:hover > ul {
    left: auto;
}
#cssmenu.align-right li:hover > ul {
    left: auto;
    right: 0;
}
#cssmenu li:hover > ul > li {
    height: 35px;
}
#cssmenu ul ul ul {
    margin-left: 100%;
    top: 0;
}
#cssmenu.align-right ul ul ul {
    margin-left: 0;
    margin-right: 100%;
}
#cssmenu ul ul li a {
    border-bottom: 1px solid rgba(150, 150, 150, 0.15);
    padding: 11px 15px;
    width: 170px;
    font-size: 12px;
    text-decoration: none;
    color: #dddddd;
    font-weight: 400;
    background: #333333;
}
#cssmenu ul ul li:last-child > a, #cssmenu ul ul li.last-item > a {
    border-bottom: 0;
}
#cssmenu ul ul li:hover > a, #cssmenu ul ul li a:hover {
    color: #ffffff;
}
#cssmenu ul ul li.has-sub > a:after {
    position: absolute;
    top: 16px;
    right: 11px;
    width: 8px;
    height: 2px;
    display: block;
    background: #dddddd;
    content:'';
}
#cssmenu.align-right ul ul li.has-sub > a:after {
    right: auto;
    left: 11px;
}
#cssmenu ul ul li.has-sub > a:before {
    position: absolute;
    top: 13px;
    right: 14px;
    display: block;
    width: 2px;
    height: 8px;
    background: #dddddd;
    content:'';
    -webkit-transition: all .25s ease;
    -moz-transition: all .25s ease;
    -ms-transition: all .25s ease;
    -o-transition: all .25s ease;
    transition: all .25s ease;
}
#cssmenu.align-right ul ul li.has-sub > a:before {
    right: auto;
    left: 14px;
}
#cssmenu ul ul > li.has-sub:hover > a:before {
    top: 17px;
    height: 0;
}
@media all and (max-width: 768px), only screen and (-webkit-min-device-pixel-ratio: 2) and (max-width: 1024px), only screen and (min--moz-device-pixel-ratio: 2) and (max-width: 1024px), only screen and (-o-min-device-pixel-ratio: 2/1) and (max-width: 1024px), only screen and (min-device-pixel-ratio: 2) and (max-width: 1024px), only screen and (min-resolution: 192dpi) and (max-width: 1024px), only screen and (min-resolution: 2dppx) and (max-width: 1024px) {
    #cssmenu {
        width: 100%;
    }
    #cssmenu ul {
        width: 100%;
        display: none;
    }
    #cssmenu.align-center > ul {
        text-align: left;
    }
    #cssmenu ul li {
        width: 100%;
        border-top: 1px solid rgba(120, 120, 120, 0.2);
    }
    #cssmenu ul ul li, #cssmenu li:hover > ul > li {
        height: auto;
    }
    #cssmenu ul li a, #cssmenu ul ul li a {
        width: 100%;
        border-bottom: 0;
    }
    #cssmenu > ul > li {
        float: none;
    }
    #cssmenu ul ul li a {
        padding-left: 25px;
    }
    #cssmenu ul ul ul li a {
        padding-left: 35px;
    }
    #cssmenu ul ul li a {
        color: #dddddd;
        background: none;
    }
    #cssmenu ul ul li:hover > a, #cssmenu ul ul li.active > a {
        color: #ffffff;
    }
    #cssmenu ul ul, #cssmenu ul ul ul, #cssmenu.align-right ul ul {
        position: relative;
        left: 0;
        width: 100%;
        margin: 0;
        text-align: left;
    }
    #cssmenu > ul > li.has-sub > a:after, #cssmenu > ul > li.has-sub > a:before, #cssmenu ul ul > li.has-sub > a:after, #cssmenu ul ul > li.has-sub > a:before {
        display: none;
    }
    #cssmenu #menu-button {
        display: block;
        padding: 17px;
        color: #dddddd;
        cursor: pointer;
        font-size: 12px;
        text-transform: uppercase;
        font-weight: 700;
    }
    #cssmenu #menu-button:after {
        position: absolute;
        top: 22px;
        right: 17px;
        display: block;
        height: 4px;
        width: 20px;
        border-top: 2px solid #dddddd;
        border-bottom: 2px solid #dddddd;
        content:'';
    }
    #cssmenu #menu-button:before {
        position: absolute;
        top: 16px;
        right: 17px;
        display: block;
        height: 2px;
        width: 20px;
        background: #dddddd;
        content:'';
    }
    #cssmenu #menu-button.menu-opened:after {
        top: 23px;
        border: 0;
        height: 2px;
        width: 15px;
        background: #ffffff;
        -webkit-transform: rotate(45deg);
        -moz-transform: rotate(45deg);
        -ms-transform: rotate(45deg);
        -o-transform: rotate(45deg);
        transform: rotate(45deg);
    }
    #cssmenu #menu-button.menu-opened:before {
        top: 23px;
        background: #ffffff;
        width: 15px;
        -webkit-transform: rotate(-45deg);
        -moz-transform: rotate(-45deg);
        -ms-transform: rotate(-45deg);
        -o-transform: rotate(-45deg);
        transform: rotate(-45deg);
    }
    #cssmenu .submenu-button {
        position: absolute;
        z-index: 99;
        right: 0;
        top: 0;
        display: block;
        border-left: 1px solid rgba(120, 120, 120, 0.2);
        height: 46px;
        width: 46px;
        cursor: pointer;
    }
    #cssmenu .submenu-button.submenu-opened {
        background: #262626;
    }
    #cssmenu ul ul .submenu-button {
        height: 34px;
        width: 34px;
    }
    #cssmenu .submenu-button:after {
        position: absolute;
        top: 22px;
        right: 19px;
        width: 8px;
        height: 2px;
        display: block;
        background: #dddddd;
        content:'';
    }
    #cssmenu ul ul .submenu-button:after {
        top: 15px;
        right: 13px;
    }
    #cssmenu .submenu-button.submenu-opened:after {
        background: #ffffff;
    }
    #cssmenu .submenu-button:before {
        position: absolute;
        top: 19px;
        right: 22px;
        display: block;
        width: 2px;
        height: 8px;
        background: #dddddd;
        content:'';
    }
    #cssmenu ul ul .submenu-button:before {
        top: 12px;
        right: 16px;
    }
    #cssmenu .submenu-button.submenu-opened:before {
        display: none;
    }
}

<强> jsFiddle Demo