如何根据浏览器窗口大小动态调整html表

How to dynamically adjust html table based on browser window size

本文关键字：调整 html 动态 窗口大小 何根 浏览器      更新时间：2023-09-26

我希望我的网站根据web浏览器的大小进行不同的显示。基于其他用户的问题/答案，我将其用于JavaScript onload。但我无法让它动态工作——也就是说，当用户调整窗口时，它是实时的。他们必须刷新才能更改网页的格式。

这是我当前的代码：

<table class="index_table" border="0">
<tr>
    <!--BELOW IS JAVASCRIPT FOR ADJUSTING HTML BASED ON WINDOW SIZE -->
    <script>
    if (window.innerWidth > 900){
    document.write('<td rowspan="3" class="index_article"></td>');
    }
    </script>
    <!-- END OF JAVASCRIPT -->
    <td class="index_article_light">
        <h2 class="index_instructions_subheader">INSERT HEADER HERE</h2>
        <p class="index_instructions">INSERT PARAGRAPH HERE.</p>
        <p class="index_instructions">INSERT PARAGRAPH HERE. </p>
            <br />
            <form action="signup.html" style="vertical-align:top;">
                <table border="0"  style="margin-left:auto;margin-right:auto;width:400px;">
                    <tr>
                        <td>
                            <input type="text" name="search" class="firstname" value="&nbsp;First name">
                        </td>
                        <td>
                            <input type="text" name="search" class="lastname" value="&nbsp;Last name">
                        </td>
                    </tr>
                    <tr>
                        <td colspan="2">
                            <input type="text" name="search" class="email" value="&nbsp;Email">
                        </td>
                    </tr>
                    <tr>
                        <td colspan="2">
                            <div style="color:#979797;">Password:&nbsp;<br /><input type="password" name="password" class="password" value="Password"></div>
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <div style="color:#979797;">Verify password:&nbsp;<input type="password" name="verify_passwords" class="password" value="Password"></div>
                        </td>
                    </tr>
                    <tr>
                        <td colspan="2">
                            <select>
                                 <option value="kent">INSERT LIST HERE</option>
                            </select>
                        </tr>
                    </tr>
                    <tr>
                        <td colspan="2">
                            <input type="submit" value="signup!" style="float:right;" id="result_submit">
                        </td>
                    </tr>
                </table>
            </form>
    </td>
</tr>
<!--BELOW IS JAVASCRIPT FOR ADJUSTING HTML BASED ON WINDOW SIZE -->
    <script>
    if (window.innerWidth < 900){
    document.write('<tr><td class="index_article" style="height:200px;"></td></tr>');
    }
    </script>
    <!-- END OF JAVASCRIPT -->

注意：我知道我不应该使用表，我应该使用divs。但这是另一个问题。。。在我意识到这一点之前，我就开始建立这个网站。我也知道这很草率。所以请耐心等待。我正努力坚持下去，直到我有时间把它修好。

您不应该使用JavaScript进行响应式web设计。使用CSS代替媒体查询。所以你写你的HTML:

<table class="index_table" border="0">
<tr>
    <!--This only will display on screen-width>900-->
    <td id="big_device_index" rowspan="3" class="index_article"></td>
    <td class="index_article_light">
        <h2 class="index_instructions_subheader">INSERT HEADER HERE</h2>
        <p class="index_instructions">INSERT PARAGRAPH HERE.</p>
        <p class="index_instructions">INSERT PARAGRAPH HERE. </p>
            <br />
            <form action="signup.html" style="vertical-align:top;">
                <table border="0"  style="margin-left:auto;margin-right:auto;width:400px;">
                    <tr>
                        <td>
                            <input type="text" name="search" class="firstname" value="&nbsp;First name">
                        </td>
                        <td>
                            <input type="text" name="search" class="lastname" value="&nbsp;Last name">
                        </td>
                    </tr>
                    <tr>
                        <td colspan="2">
                            <input type="text" name="search" class="email" value="&nbsp;Email">
                        </td>
                    </tr>
                    <tr>
                        <td colspan="2">
                            <div style="color:#979797;">Password:&nbsp;<br /><input type="password" name="password" class="password" value="Password"></div>
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <div style="color:#979797;">Verify password:&nbsp;<input type="password" name="verify_passwords" class="password" value="Password"></div>
                        </td>
                    </tr>
                    <tr>
                        <td colspan="2">
                            <select>
                                 <option value="kent">INSERT LIST HERE</option>
                            </select>
                        </tr>
                    </tr>
                    <tr>
                        <td colspan="2">
                            <input type="submit" value="signup!" style="float:right;" id="result_submit">
                        </td>
                    </tr>
                </table>
            </form>
    </td>
</tr>
<!--This only will display on screen-width<900-->
<tr id="small_device_index"><td class="index_article" style="height:200px;"></td></tr>

使用以下CSS：

@media all and (max-width: 899px) {
    #big_device_index {
        display: none;
    }
@media all and (min-width: 900px) {
    #small_device_index {
        display: none;
    }

您可以在此处了解有关媒体查询的更多信息}

将此添加到if (window.innerWidth > 900){..... 之外

$(window).resize(function(){
        if (window.innerWidth > 900){
                $('.index_article').remove();
                $('.index_table).find('tr:first').append('<td rowspan="3" class="index_article"></td>');
        }
}

希望这将对您有所帮助，请确保包含fisrtjquery.min.js

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