所以我有一个这样的选择器：
.page-admin-settings-banner-image input[type=radio]
这是身体和类：
<body class="not-front logged-in one-sidebar sidebar-left page-admin-settings-banner-image section-admin admin-menu">
这是形式和类：
<form action="/admin/settings/banner-image" accept-charset="UTF-8" method="post" id="banner-image-select">
这是输入按钮（我试图选择此表单中的所有输入按钮，所以我不能选择id，遗憾的是）：
<input type="radio" id="edit-banner-image-season-files/banners/banner-summer.jpg" name="banner_image_season" value="files/banners/banner_summer.jpg" checked="checked" class="form-radio">
现在，我试图以多种方式抓住这个特定的输入 - 我已经尝试过.form-radio，我已经尝试过一条路径，但出于某种原因我只能＆＃39 ;似乎选择它。似乎没有什么能够覆盖我写的CSS - 它似乎根本没有被应用。
为什么这个CSS：
.page-admin-settings-banner-image input[type=radio]{
float: left;
margin-top:80px;
}
不工作？
或者这个：
#banner-image-select input[type=radio]{
float: left;
margin-top:80px;
}
在我看来，无线电类型的输入是在这两个元素中，它应该选择它。
根据请求表单HTML：
<form action="/admin/settings/banner-image" accept-charset="UTF-8" method="post" id="banner-image-select">
<div><div class="form-item">
<label>Choose a Season: </label>
<div class="description">Choose a season for display at the top of the page</div>
<div class="form-radios"><div class="form-item" id="edit-banner-image-season-files/banners/banner-fall.jpg-wrapper">
<label class="option" for="edit-banner-image-season-files/banners/banner-fall.jpg"><input type="radio" id="edit-banner-image-season-files/banners/banner-fall.jpg" name="banner_image_season" value="files/banners/banner_fall.jpg" class="form-radio"> <img src="http://domain/files/banners/banner_fall.jpg"></label>
</div>
<div class="form-item" id="edit-banner-image-season-files/banners/banner-spring.jpg-wrapper">
<label class="option" for="edit-banner-image-season-files/banners/banner-spring.jpg"><input type="radio" id="edit-banner-image-season-files/banners/banner-spring.jpg" name="banner_image_season" value="files/banners/banner_spring.jpg" class="form-radio"> <img src="http://domain/files/banners/banner_spring.jpg"></label>
</div>
<div class="form-item" id="edit-banner-image-season-files/banners/banner-summer.jpg-wrapper">
<label class="option" for="edit-banner-image-season-files/banners/banner-summer.jpg"><input type="radio" id="edit-banner-image-season-files/banners/banner-summer.jpg" name="banner_image_season" value="files/banners/banner_summer.jpg" checked="checked" class="form-radio"> <img src="http://domain/files/banners/banner_summer.jpg"></label>
</div>
<div class="form-item" id="edit-banner-image-season-files/banners/banner-winter.jpg-wrapper">
<label class="option" for="edit-banner-image-season-files/banners/banner-winter.jpg"><input type="radio" id="edit-banner-image-season-files/banners/banner-winter.jpg" name="banner_image_season" value="files/banners/banner_winter.jpg" class="form-radio"> <img src="http://domain/files/banners/banner_winter.jpg"></label>
</div>
</div>
</div>
<input type="submit" name="op" id="edit-submit" value="Save" class="form-submit">
<input type="hidden" name="form_build_id" id="form-ed7f4579756fea75b4eae351bacd6cc3" value="form-ed7f4579756fea75b4eae351bacd6cc3">
<input type="hidden" name="form_token" id="edit-banner-image-select-form-token" value="c93ad83537dbd1252d5fc1ef5fcd91aa">
<input type="hidden" name="form_id" id="edit-banner-image-select" value="banner_image_select">
</div></form>