我试图在header.php中调用<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">，该页面链接到post_form上的jQuery文件上传器的post_form页面，而不会覆盖页面其余部分的css。我试图删除左表格单元格，试图将文件上传器向左浮动，并尝试将文件上传器的宽度扩展到100％无效。
代码更新
<tr>
<th>Upload:</th>
<td width="250"> <!-- The global progress state -->
<div class="fileupload-progress fade" style="display:none">
<!-- The global progress bar -->
<div class="progress" role="progressbar" aria-valuemin="0" aria-valuemax="100"></div>
<!-- The extended global progress state -->
<div class="progress-extended"> </div>
</div>
</div>
<!-- The table listing the files available for upload/download -->
</div>
<table role="presentation"><tbody class="files"><textarea cols="60"></textarea></tbody></table>
</form>
<!-- The blueimp Gallery widget -->
<div id="blueimp-gallery" class="blueimp-gallery blueimp-gallery-controls" data-filter=":even">
<div class="slides"></div>
<h3 class="title"></h3>
<a class="prev">‹</a>
<a class="next">›</a>
<a class="close">×</a>
<a class="play-pause"></a>
<ol class="indicator"></ol>
</div>
</td>
<td>
<form>
<label for="theme-switcher">Theme:</label>
<select id="theme-switcher" class="pull-right">
<option value="black-tie">Black Tie</option>
<option value="blitzer">Blitzer</option>
<option value="cupertino">Cupertino</option>
<option value="dark-hive" selected>Dark Hive</option>
<option value="dot-luv">Dot Luv</option>
<option value="eggplant">Eggplant</option>
<option value="excite-bike">Excite Bike</option>
<option value="flick">Flick</option>
<option value="hot-sneaks">Hot sneaks</option>
<option value="humanity">Humanity</option>
<option value="le-frog">Le Frog</option>
<option value="mint-choc">Mint Choc</option>
<option value="overcast">Overcast</option>
<option value="pepper-grinder">Pepper Grinder</option>
<option value="redmond">Redmond</option>
<option value="smoothness">Smoothness</option>
<option value="south-street">South Street</option>
<option value="start">Start</option>
<option value="sunny">Sunny</option>
<option value="swanky-purse">Swanky Purse</option>
<option value="trontastic">Trontastic</option>
<option value="ui-darkness">UI Darkness</option>
<option value="ui-lightness">UI Lightness</option>
<option value="vader">Vader</option>
</select>
</form><!-- The file upload form used as target for the file upload widget -->
<form id="fileupload" action="//jquery-file-upload.appspot.com/" method="POST" enctype="multipart/form-data">
<!-- Redirect browsers with JavaScript disabled to the origin page -->
<noscript><input type="hidden" name="redirect" value="https://blueimp.github.io/jQuery-File-Upload/"></noscript>
<!-- The fileupload-buttonbar contains buttons to add/delete files and start/cancel the upload -->
<div class="fileupload-buttonbar">
<div class="fileupload-buttons">
<!-- The fileinput-button span is used to style the file input field as button -->
<span class="fileinput-button">
<span>Add files...</span>
<input type="file" name="files[]" multiple>
</span>
<button type="submit" class="start">Start upload</button>
<button type="reset" class="cancel">Cancel upload</button>
<button type="button" class="delete">Delete</button>
<input type="checkbox" class="toggle">
<!-- The global file processing state -->
<span class="fileupload-process"></span>
</div>
<!-- The global progress state -->
<div class="fileupload-progress fade" style="display:none">
<!-- The global progress bar -->
<div class="progress" role="progressbar" aria-valuemin="0" aria-valuemax="100"></div>
<!-- The extended global progress state -->
<div class="progress-extended"> </div>
</div>
</div>
<!-- The table listing the files available for upload/download -->
<table role="presentation"><tbody class="files"></tbody></table>
</form>
<br>
<!-- The blueimp Gallery widget -->
<div id="blueimp-gallery" class="blueimp-gallery blueimp-gallery-controls" data-filter=":even">
<div class="slides"></div>
<h3 class="title"></h3>
<a class="prev">‹</a>
<a class="next">›</a>
<a class="close">×</a>
<a class="play-pause"></a>
<ol class="indicator"></ol>
</div>
<!-- The template to display files available for upload -->
<script id="template-upload" type="text/x-tmpl">
{% for (var i=0, file; file=o.files[i]; i++) { %}
<tr class="template-upload fade">
<td>
<span class="preview"></span>
</td>
<td>
<p class="name">{%=file.name%}</p>
<strong class="error"></strong>
</td>
<td>
<p class="size">Processing...</p>
<div class="progress"></div>
</td>
<td>
{% if (!i && !o.options.autoUpload) { %}
<button class="start" disabled>Start</button>
{% } %}
{% if (!i) { %}
<button class="cancel">Cancel</button>
{% } %}
</td>
</tr>
{% } %}
</script>
<!-- The template to display files available for download -->
<script id="template-download" type="text/x-tmpl">
{% for (var i=0, file; file=o.files[i]; i++) { %}
<tr class="template-download fade">
<td>
<span class="preview">
{% if (file.thumbnailUrl) { %}
<a href="{%=file.url%}" title="{%=file.name%}" download="{%=file.name%}" data-gallery><img src="{%=file.thumbnailUrl%}"></a>
{% } %}
</span>
</td>
<td>
<p class="name">
<a href="{%=file.url%}" title="{%=file.name%}" download="{%=file.name%}" {%=file.thumbnailUrl?'data-gallery':''%}>{%=file.name%}</a>
</p>
{% if (file.error) { %}
<div><span class="error">Error</span> {%=file.error%}</div>
{% } %}
</td>
<td>
<span class="size">{%=o.formatFileSize(file.size)%}</span>
</td>
<td>
<button class="delete" data-type="{%=file.deleteType%}" data-url="{%=file.deleteUrl%}"{% if (file.deleteWithCredentials) { %} data-xhr-fields='{"withCredentials":true}'{% } %}>Delete</button>
<input type="checkbox" name="delete" value="1" class="toggle">
</td>
</tr>
{% } %}
</script>
</td>
</tr>
答案 0 :(得分：0)
最具特色的css选择器将是选择的，如果选择器相等，将选择最后一个选择器
所以
#divID{
}
将覆盖
int sum = 0;
//search number of occurences for each alphabet in the string
for (i=0; i<26; i++) {
sum += (numchar(str, 'a' + i) +1) / 2; //round up
}
上面的选择器比上一个选择器更加明显。如果他们在同一个地方，那么最后一个将被选中。我觉得你最后加载了你的css，并覆盖了你的css文件中的bootstrap