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我正在嘗試重新設計一個幾年前爲我工作的公司創建的網站。通常我不會用現有的HTML/CSS重新設計網站。但今天我有點麻煩。也許我只需要更多的咖啡，但這是我的問題。HTML/CSS佈局問題
我試圖讓#CSSmenu浮動左邊，並且.promo和.quote浮動右邊。看來#CSSmenu正在阻止他們漂浮在右邊。他們被迫到div的底部，就好像#CSSmenu的總寬度佔用整個包裝950px。
我附上了一個模擬，以更好地解釋我想要做什麼以及代碼。我有一種感覺，這是在CSS中的某個地方這樣做的，但是因爲我之前沒有設計網站，所以我在查找它時沒有任何評論，有點麻煩。
http://postimg.org/image/ypwpe0fpl/
<div class="content_width"> <!-- Control Width of wrapper for content -->
<div id='cssmenu'> <!-- Containter For Nav Menu -->
<ul>
<li>Browse Our Products</li> <!--List Title-->
<li><a href='#'>Business Cards</a></li>
<li class='active has-sub'><a href='#'>Stationary</a>
<ul>
<li class=''><a href='#'>Letter Head</a></li>
<li class=''><a href='#'>Envelopes</a></li>
<li class=''><a href='#'>Labels</a></li>
<li class=''><a href='#'>Note Pads</a></li>
</ul>
</li>
<li><a href='#'>Brochures</a></li>
<li class='active has-sub'><a href='#'>Signage</a>
<ul>
<li class=''><a href='#'>Signs</a></li>
<li class=''><a href='#'>Yard signs</a></li>
<li class=''><a href='#'>Trade Show Graphics</a></li>
<li class=''><a href='#'>X-Frame With Banners</a></li>
</ul>
</li>
<li><a href='#'>Post Cards</a></li>
<li><a href='#'>Vinyl Banners</a></li>
<li class='active has-sub'><a href='#'>Mailing Services</a>
<ul>
<li class=''><a href='#'>Ink Jet</a></li>
<li class=''><a href='#'>Direct Mailing</a></li>
<li class=''><a href='#'>Sorting & Tabbing</a></li>
<li class=''><a href='#'>Mailing List</a></li>
</ul>
</li>
<li class='active has-sub'><a href='#'>Marketing Material</a>
<ul>
<li class=''><a href='#'>Greeting Cards</a></li>
<li class=''><a href='#'>Rock Cards</a></li>
<li class=''><a href='#'>Brochures</a></li>
<li class=''><a href='#'>Book Marks</a></li>
<li class=''><a href='#'>Presentation Folders</a></li>
</ul>
</li>
<li class='active has-sub'><a href='#'>Speciality Products</a>
<ul>
<li class=''><a href='#'>Magnets</a></li>
<li class=''><a href='#'>T-Shirts (Heat Transfer Imaging)</a></li>
<li class=''><a href='#'>Bumper Stickers</a></li>
<li class=''><a href='#'>Plastic</a></li>
<li class=''><a href='#'>Static Cling</a></li>
</ul>
</li>
<li><a href='#'>Apparel</a> </li>
</ul>
<div class="promo">
Promo 1
</div>
<div class="quote">
Quote 1
</div>
</div><!-- End of Content Wrapper -->
</div> <!-- End of CSS Menu-->
<style>
/* Added CSS by Darius Shojaei for Content Body */
#cssmenu,
#cssmenu ul,
#cssmenu ul li,
#cssmenu ul li a {
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 {
font-family: Roboto, sans-serif;
}
#cssmenu > ul {
width: 180px;
background: #ffffff;
}
#cssmenu > ul > li > a {
padding: 12px 15px;
font-size: 14px;
color: #666666;
font-weight: 700;
text-decoration: none;
-webkit-transition: color .2s ease;
-o-transition: color .2s ease;
-ms-transition: color .2s ease;
transition: color .2s ease;
}
#cssmenu > ul > li:hover > a,
#cssmenu > ul > li > a:hover {
color: #222222;
}
#cssmenu ul li.has-sub > a::after {
position: absolute;
right: 15px;
display: block;
width: 10px;
height: 10px;
content: "";
border-radius: 2px;
}
#cssmenu > ul > li.has-sub > a::after {
top: 14px;
background: #666666;
}
#cssmenu > ul > li.has-sub:hover > a::after,
#cssmenu > ul > li.has-sub > a:hover::after {
background: #222222;
}
#cssmenu ul ul li.has-sub > a::after {
top: 13px;
background: #ffffff;
}
#cssmenu ul ul li.has-sub:hover > a::after,
#cssmenu ul ul li.has-sub > a:hover::after {
background: #dddddd;
}
#cssmenu ul li.has-sub > a::before {
position: absolute;
right: 15px;
z-index: 2;
display: block;
width: 0;
height: 0;
border: 3px solid transparent;
content: "";
}
#cssmenu > ul > li.has-sub > a::before {
top: 16px;
border-left-color: #ffffff;
}
#cssmenu ul ul li.has-sub > a::before {
top: 15px;
border-left-color: #2e353b;
}
#cssmenu ul {
-webkit-perspective: 600px;
-moz-perspective: 600px;
perspective: 600px;
-webkit-transform-style: preserve-3d;
-moz-transform-style: preserve-3d;
transform-style: preserve-3d;
}
#cssmenu ul ul {
position: absolute;
top: 0;
left: -9999px;
width: 180px;
background: #2e353b;
opacity: 0;
-moz-transition: opacity 0.2s ease, -moz-transform 0.2s ease;
-webkit-transition: opacity 0.2s ease, -webkit-transform 0.2s ease;
-ms-transition: opacity 0.2s ease, -ms-transform 0.2s ease;
-o-transition: opacity 0.2s ease, -o-transform 0.2s ease;
transition: opacity .2s ease, transform .2s ease;
-webkit-transform: rotate3d(0, 1, 0, 45deg);
-moz-transform: rotate3d(0, 1, 0, 45deg);
transform: rotate3d(0, 1, 0, 45deg);
-webkit-transform-origin: left center;
-moz-transform-origin: left center;
transform-origin: left center;
-webkit-backface-visibility: hidden;
-moz-backface-visibility: hidden;
backface-visibility: hidden;
}
#cssmenu ul li:hover > ul {
left: 100%;
opacity: 1;
transform: rotate3d(0, 0, 0, 0);
}
#cssmenu ul ul::after {
position: absolute;
left: -8px;
top: 14px;
z-index: 5;
display: block;
width: 0;
height: 0;
border: 4px solid transparent;
border-right-color: #2e353b;
content: "";
}
#cssmenu ul ul a {
padding: 12px 15px;
font-size: 12px;
color: #ffffff;
font-weight: 700;
text-decoration: none;
-webkit-transition: color .2s ease;
-o-transition: color .2s ease;
-ms-transition: color .2s ease;
transition: color .2s ease;
}
#cssmenu ul ul li:hover > a,
#cssmenu ul ul li a:hover {
color: #dddddd;
}
/* End of CSS Vertical Nav Menu */
.promo {
width:355px;
background-color:#F0F;
display:inline;
float:right;
}
.quote {
width:355px;
background-color:#F0F;
display:inline;
float:right;
}
.content_width, .content_width_wrapper {
width: 950px;
/* Do Not Change This */
margin: 0px auto;
}
/* end of new CSS */
</style>
取而代之的是彩車看看的（幾乎）新** ** Flexbox的元素的特徵：將爲您節省一些佈局煩惱。 –
你實際上是否將#CSSMenu浮動到左邊？我沒有看到你的代碼中的任何地方...... –