css:nth-of-type()选择器用法_html/css_WEB-ITnose
今天做一个页面,无意中看到这个nth-of-type感觉挺方便的,之前单双行有的有横线,有的无横线一般在html中单独再写border-right:none等之类的。现在发现这个好东西赶紧记录下来。
:nth-of-type(n) 选择器匹配属于父元素的特定类型的第 N 个子元素的每个元素.n 可以是数字、关键词或公式。
.uninstall_form .uninstall_list_checkbox:nth-of-type(odd){border-right:1px solid #e6e6e6}<form onsubmit="return check()" action="" method="post" name="post_unintall" id="post_unintall"> <div class="uninstall_list"> <input type="checkbox" id="uninstall_list1" name="my_check[]" value="1"> <label class="uninstall_list_checkbox">我想下某个软件结果下载了安智市场</label> </div> <div class="uninstall_list"> <input type="checkbox" id="uninstall_list1" name="my_check[]" value="2"> <label class="uninstall_list_checkbox">手机出问题,卸载了重装试试</label> </div> <div class="uninstall_list"> <input type="checkbox" id="uninstall_list2" name="my_check[]" value="3"> <label class="uninstall_list_checkbox">软件不全,好多软件找不到</label> </div> .....</form>
odd奇数行右面有一条线 even偶数行没有,还可以用2n+1表示奇数,2n表示偶数,3n+1表示每个三个显示。
类似的也有
:nth-child(n) 选择器匹配属于其父元素的第 N 个子元素,不论元素的类型。n 可以是数字、关键词或公式。
有一个css样式我感觉也很有用 记录下来
background-clip: border-box|padding-box|content-box;
background-clip 属性规定背景的绘制区域。
border-box是背景被裁剪到边框盒。
效果这样的
padding-box背景被裁剪到内边距框。
效果这样的:
content-box是背景被裁剪到内容框。
效果是这样:

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