浏览器：chrome
https://meocloud.pt/link/8b1b2319-7677-4c18-afd6-2d8ab48d5c63/form.JPG/
我有一个标题和页脚的联系页面，其中包含了on_once，内容位于中间。 hearder.php为1 div的左右浮动（200px + 750px + margin -right：10px total 960px），页脚作为一个div中心（960px） 中间的这个内容被动态导入到这个页面中，左右两个div浮动（200px + 750px + margin -right：10px total 960px）。
我的问题如下：
当我在内容页面中插入一个表单（750px - 右浮动）时，它将标题的右边div（750px）向下移动+/- 100px。
我该如何解决这个问题？
由于
我试图澄清：右/左/两个......遗憾的是，我的问题无法解决:(
这是代码（提前感谢）：
http://jsfiddle.net/yXdg6/embedded/result/
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>Home Page - MiCasa</title>
<link href="css/style.css" rel="stylesheet" type="text/css">
</head>
<body>
<div id="box">
<div id="header">
<div id="header_topo">
<a href="index.php"> <img src="assets/layout/logo/logo.jpg" alt="home" title="home" border="0" class="img_logo" /> </a>
<ul>
<li><a href="index.php?pg=home">Home</a></li>
<li><a href="index.php?pg=properties">Property sell</a></li>
<li><a href="index.php?pg=properties">Property to let</a></li>
<li><a href="index.php?pg=rentals">Holidays rentals</a></li>
<li><a href="index.php?pg=guide">Guide to Portugal</a></li>
<li><a href="index.php?pg=register">Advertise</a></li>
</ul>
</div> <!------ close header_topo ------>
<div id="header_navegar">
<div id="header_navegar_central">
<div id="header_navegar_filtro">
<div id="q_search"></div> <!---- close q_search ---->
<h1> Find Your Home</h1> <h2> Quick Search</h2>
<form name="filtrar_avancado" method="post" action="" >
<select name="tipo">
<option value=""> To Buy or To Rent? </option>
<option value=""> Properties for Sale </option>
<option value=""> Properties to Rent </option>
<option value=""> Holiday Rentals </option>
</select>
<select name="property_type">
<option value="" disabled="Disabled"> Select type </option>
<option value="" disabled="Disabled"> Apartment </option>
<option value="" disabled="Disabled"> Villa </option>
<option value="" disabled="Disabled"> Farm </option>
<option value="" disabled="Disabled"> Business </option>
<option value="" disabled="Disabled"> Townhouse </option>
<option value="" disabled="Disabled"> Old House </option>
</select>
<select name="area">
<option value="" disabled="Disabled"> Select Area </option>
<option value="" disabled="Disabled"> Algarve </option>
<option value="" disabled="Disabled"> Alentejo </option>
<option value="" disabled="Disabled"> Lisbon </option>
<option value="" disabled="Disabled"> Center </option>
<option value="" disabled="Disabled"> North </option>
</select>
<select name="bedrooms">
<option value="" disabled="Disabled"> Bedrooms </option>
<option value="" disabled="Disabled"> 1 room </option>
<option value="" disabled="Disabled"> 2 rooms </option>
<option value="" disabled="Disabled"> 3 rooms </option>
<option value="" disabled="Disabled"> 4 rooms </option>
<option value="" disabled="Disabled"> 5+ rooms </option>
</select>
<select name="price">
<option value="" disabled="Disabled"> select a price range </option>
<option value="" disabled="Disabled"> 0€ - 10000€ </option>
<option value="" disabled="Disabled"> 10001€ - 20000€ </option>
<option value="" disabled="Disabled"> 20001€ - 40000€ </option>
<option value="" disabled="Disabled"> 40001€ - 60000€ </option>
<option value="" disabled="Disabled"> 60001€ - 100000€ </option>
</select>
<span> Listing Count: 1256 </span>
<input type="submit" name="lista" value="Search" class="btn">
</form>
</div><!------ close header_navegar_filtro ------>
<div id="header_navegar_banner">
<img src="assets/temp/img02_b.jpg" class="banner"/>
</div><!------ close header_navegar_banner ------>
</div><!------ close header_navegar_central ------>
</div><!------ close header_navegar ------>
</div> <!------ close header ------>
<div id="clear">
<div id="imoveis_home">
<div id="adverts"><h1>Advertisment </h1>
<img src="assets/layout/list_property/List_Property_Bg_hover.jpg" class="advert"/>
</div><!------ close adverts ------>
<div id="facebook"><img src="assets/layout/facebook/FB_FindUsOnFacebook-114.png" class="facebook"/>
</div> <!--- close Facebook ---->
</div>
</div> <!--- close clear ---->
<div id="pagina">
<h1>Register</h1>
<h2>The system of inserting your Advertizing is completly automatic. <br />
Once your register, you will be given access to the member control panel where you will be able to:</h2>
<h3>
» Insert your property to let or sell!<br />
» Edit you ongoing advert!<br />
» Respond to messenges!<br />
» Check your statistics!<br />
» Process payments!<br />
» Edit your profile!<br />
» and much more....</h3>
<h4>Register now and advertize you property!</h4>
<h5>Questions? <a href="index.php?pg=contacts">Clique here!</a></h5>
<form name="register_client" id="register_client" method="post" action="index.php?pg=register_ok" enctype="multipart/form-data">
<fieldset><legend>Register and advertize</legend>
<label>
<span>Company:</span>
<input type="text" name="company" />
</label>
<label>
<span>First Name:</span>
<input type="text" name="first_name" />
</label>
<label>
<span>Last Name:</span>
<input type="text" name="last_name" />
</label>
<label>
<span>E-mail:</span>
<input type="text" name="email" />
</label>
<label>
<span>Password:</span>
<input type="password" name="password" />
</label>
<label>
<span>Telephone:</span>
<input type="text" name="telephone" />
</label>
<input type="submit" name="register" value="register" class="btn" />
</fieldset>
</form>
</div> <!--- close div pagina --->
<div id="footer">
<div class="txt" >
<ul>
<li>
<h2><a href="index.php?pg=about">About us</a></h2>
<h3><a href="index.php?pg=news">News</a></h3>
<h4><a href="index.php?pg=disclaimer">Terms and privacy</a></h4>
<h5><a href="index.php?pg=contact">Contacts</a></h5>
<h6><a href="index.php?pg=advertise">Advertise</a></h6>
</li>
</ul>
</div><!------ close txt ------>
</div><!------ close footer ------>
</div><!------ close box ------>
</body>
</html>
答案 0 :(得分：0)
尝试
clear: both;
或
clear: left;
或
clear: right;
更多信息：http://www.w3schools.com/cssref/pr_class_clear.asp
如果您可以发布您的代码，您也可以帮助我们解决您的问题！
答案 1 :(得分：0)
我无法在Chrome中复制您的问题，但在我看来，您的标记很复杂，而且您的CSS变得臃肿且不灵活。
因此，我建议改变对您设计的思考。而不是严格地设置所有内容的固定高度，让内容流动：这样可以让以后更容易编辑或使其响应：
/* ------- Content Container */
.contentContainer {
width: 960px;
margin: 0 auto;
}
/* ------- Aside */
.contentContainer .aside {
width: 200px;
float: left;
}
.contentContainer .aside .findHome {
margin-bottom: 10px;
background: #f00;
border-radius: 5px;
}
.contentContainer .aside .advertisements {
background: #f00;
border-radius: 5px;
}
/* ------- Content */
.contentContainer .content {
margin-left: 210px;
}
/* ------- Navigation */
.navigation {
list-style: none;
background: #014F66;
padding: 10px;
margin: 0 0 10px;
border-radius: 5px;
}
.navigation li {
display: inline;
}
.navigation li a {
color: #fff;
}
/* ------- Hero Container */
.heroContainer {
margin-bottom: 10px;
}
.heroContainer .hero {
max-width: 100%;
border-radius: 5px;
display: block;
}
/* ------- Registration Panel */
.registration {
border-radius: 5px;
border: solid 1px #ccc;
padding: 20px;
}<div class="contentContainer">
<div class="aside">
<div class="findHome">
Find Your Home
<br>
<br>
<br>
<br>
<br>
<br>
</div>
<div class="advertisements">
Advertisements
<br>
<br>
<br>
<br>
<br>
<br>
<br>
</div>
</div>
<div class="content">
<ul class="navigation">
<li><a href="">Home</a>
</li>
<li><a href="">Sell Property</a>
</li>
<li><a href="">Let Property</a>
</li>
<li><a href="">Holiday Rentals</a>
</li>
<li><a href="">Guide to Portugal</a>
</li>
<li><a href="">Advertise</a>
</li>
</ul>
<div class="heroContainer">
<img class="hero" src="http://www.arts-wallpapers.com/art-wallpaper-org/panoramic-hd-wallpapers/images/2.jpg">
</div>
<div class="registration">
<h1>Register</h1>
</div>
</div>
</div>
答案 2 :(得分：0)
更改
的值 #header_topo ul{
margin:65px 0 0 0;
}
到
#header_topo ul{
margin:0;
}
它会起作用