Question

我不确定如何提出这个问题，但我会尽力解释我想要完成的事情。我的主页上有一个横幅，在这个横幅内我有一个div是重叠它。

现在，通过在横幅上重叠此项目它会产生一个问题，其中我的主页上的所有其他内容都在这个重叠的项目后面。示例：我的页脚（标记为红色）是在这个重叠的项目后面，我我希望阻止这种情况发生，我希望所有内容都低于它。

＆＃13;

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    color: #444;
    font-size: 13px;
    background-color: #fafafa;
    font-family: Arial, sans-serif;
}

.container {
    height: auto;
    width: 1200px;
    margin: 0 auto;
    overflow: hidden;
}

secion {
    width: 100%;
    height: auto;
    background-color: #fff;
}

header {
    width: 100%;
    height: 168px;
    overflow: hidden;
    box-shadow: 0 2px 5px 0 rgba(0,0,0,.16);
}

.top-nav {
    width: 100%;
    height: 42px;
    background-color: white;
}

.top-nav ul {
    float: left;
    line-height: 42px;
    list-style-type: none;
}

.top-nav ul li {
    display: inline-block;
}

.top-nav ul li a, a:visited {
    color: #444;
    padding: 42px 12px;
    text-decoration: none;
}

.top-nav ul li a:hover {
    background-color: #fafafa;
}

.center-console {
    width: 100%;
    height: 80px;
    background-color: #f4f4f4;
}

header nav {
    width: 100%;
    height: 46px;
    background-color: #fff;
}

header nav ul {
    float: left;
    line-height: 46px;
    list-style-type: none;
}

header nav ul li {
    margin: 0;
    display: inline-block;
}

header nav ul li a, a:visited {
    color: #444;
    padding: 46px 12px;
    text-decoration: none;
    color: rgba(0,0,0,.54);
}

header nav ul li a:hover {
    color: #15c;
    background-color: #fff;
    box-shadow: 0 4px 8px 0 #dcdcdc;
}


.logo {
    float: left;
    width: 200px;
    height: 50px;
    margin-top: 15px;
    background-color: #fff;
}

.center-console form {
    float: right;
    width: 400px;
    height: 40px;
    padding: 0 15px;
    margin-top: 20px;
    border-radius: 3px;
    background-color: #fff;
}

.search-icon-small {
    width: 18px;
    height: 19px;
    float: right;
    margin-top: 11px;
    background-repeat: no-repeat;
    background-image: url("../images/search-icon-small.png");
}

header form input[type=text] {
    border: 0;
    width: 342px;
    height: 40px;
    outline: none;
    background-color: #fff;
}


.shopping-cart {
    width: 38px;
    height: 32px;
    float: right;
    margin-top: 7px;
    font-size: 25px;
    background-repeat: no-repeat;
    background-image: url("../images/shopping-cart.png");
    background-position:bottom;
}

.item-count {
    color: #fff;
    width: 18px;
    height: 18px;
    float: right;
    font-size: 10px;
    line-height: 19px;
    font-weight: bold;
    border-radius: 50%;
    text-align: center;
    background-color: #4683ea;
}


/*** Homepage ***/

.banner {
    width: 100%;
    height: 480px;
    background-color: #4387fd;
}

.banner form {
    width: 880px;
    height: 50px;
    margin: 0 auto;
    padding: 0 15px;
    margin-top: 228px;
    border-radius: 3px;
    background-color: #fff;
}

.search-icon {
    width: 30px;
    height: 30px;
    float: right;
    margin-top: 10px;
    background-repeat: no-repeat;
    background-image: url("../images/search-icon.png");
}

.banner form input[type=text] {
    border: 0;
    width: 805px;
    height: 50px;
    outline: none;
    background-color: #fff;
}

.featured-items {
    width: 1200px;
    height: 358px;
    padding: 21px;
    margin-top: 100px;
    border-radius: 6px;
    position: absolute;
    overflow: hidden;
    background-color: #fff;
}

.featured-items ul {
    list-style-type: none;
}

.featured-items ul li {
    float: left;
    width: 214px;
    height: 214px;
    margin-right: 22px;
    background-color: #f5f5f5;
}

.featured-items ul li:last-child {
    margin: 0;
    float: right;
}

footer {
    width: 100%;
    height: 400px;
    margin-top: 80px;
    overflow: hidden;
    background-color: red;
}

＆＃13;

<!DOCTYPE html>
<html>
<head>
    <title>BasicOffer</title>
    <link rel="stylesheet" type="text/css"href="css/main.css">
    <link rel="stylesheet" href="css/font-awesome/css/font-awesome.min.css">
</head>

<body>
    <header>
        <nav class="top-nav">
            <div class="container">
                <ul>
                    <li><a href="#">Selling</a></li>
                    <li><a href="#">Help</a></li>
                </ul>
                <ul style="float:right;">
                    <li><a href="#">Account</a></li>
                </ul>
            </div>
        </nav>
        <div class="center-console">
            <div class="container">
                <div class="logo"></div>
                <form>
                    <input type="text" placeholder="Search..">
                    <div class="search-icon-small"></div>
                </form>
            </div>
        </div>
        <nav>
            <div class="container">
                <ul>
                    <li><a href="#">Health & Beauty</a></li>
                    <li><a href="#">Household Supplies</a></li>
                    <li><a href="#">Baby & Toddler</a></li>
                    <li><a href="#">Home & Garden</a></li>
                    <li><a href="#">Electronics</a></li>
                    <li><a href="#">Pet Supplies</a></li>
                </ul>
                <div class="shopping-cart">
                    <div class="item-count">11</div>
                </div>
            </div>
        </nav>
    </header>
    <div class="banner">
        <div class="container">
            <form>
                <input type="text" placeholder="What are you looking for?">
                <div class="search-icon"></div>
            </form>
            <div class="featured-items">
                <ul>
                    <li></li>
                    <li></li>
                    <li></li>
                    <li></li>
                    <li></li>
                </ul>
            </div>
        </div>
    </div>
    <footer>This will be the footer</footer>
</body>

</html>

＆＃13;

设计

谢谢，理查德。

Answer 1

而不是使用绝对位置。你可以尝试

function act1()
{
if(isset($_POST['sub']))
{
    $tle = $_POST['title'];
    $dir = $_POST['dir'];
    $a1 = $_POST['act1'];
    $a2 = $_POST['act2'];
    $a3 = $_POST['act3'];
    $gre = $_POST['gre'];
    $yr = $_POST['yr'];

    $conn = getDBConn();
    $sql = "INSERT INTO movies(title, director, act_1, act_2, act_3, genre, year) VALUES('$tle','$dir','$a1','$a2','$a3','$gre','$yr')";
    $output = mysqli_query($conn,$sql);

    $dir = "images/films/";
    $imno = mysqli_insert_id($conn);

    $src = $_FILES['img']['tmp_name'];
    $des = $dir.$imno;
    move_uploaded_file($src,$des);
}

if($output==1)
{
    echo 'Data Stored';
}
else
{
    echo 'Data Not Stored ';
    echo mysqli_error($conn);
}
}
?>

working example

Answer 2

目前还不清楚为什么在此示例中需要绝对定位，但我建议您考虑使用position: relative作为横幅后面的内容块。

相对定位在布局流程方面的行为大多类似于默认（静态），但它支持z-index分层，如绝对定位。（如果你真的不需要将它放在绝对的位置，也可以考虑在横幅上使用相对位置。）

如何将内容置于绝对位置

2 个答案: