这个是隐藏的，sr-only是screen reader only的意思，盲人看的时候会把Toggle Navigation读出来。这个时候...
他们上网可能借助的是屏幕阅读器,也就是 screen reader(sr),屏幕阅读器需要找到能辨识的文本说明然后“读”出来给用户听。 问题是:一些元素,比如选中高亮状态无法读出。因此我们还要写上这些元素的文本说明,但是又不需要展示给普通用户看到,于是加上 sr-only 的意义就在于能保证屏幕阅读器正确读取且不会影响正常人的...
1 回答<span class="sr-only">Toggle Navigation</span>这句话的意义 1 回答<span class="sr-only">Toggle Navigation</span>这句什么意思? 2 回答<span class='sr-only'>40% Complete</span> 1 回答<span class=&qu...
ReadOnlySpan.cs The number of items in the read-only span. C# publicintLength {get; } Property Value Int32 The number of items. Applies to ПроизводВерзије .NETCore 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9 ...
...yAxis: [{ type: 'value', //数值轴,适用于连续数据 axisLabel: { //坐标轴刻度标签的相关设置...class="sr-only">Toggle navigation <span 1.6K20 bootstrap 花了一天时间学了下bootstrap入门,想必大家用css写前端页面的时候都很痛苦,bootstrap就是来解决这个问题的,它封装了css的很多样式,开发的时候...
80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)) A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond A page can have only one ...
Well, now you know why we don’t need 50 rounds anymore. Of the original 51 total picks (three 1st rounders and a lost 2nd rounder total 51 total guys in this class), fully 21 didn’t even sign. That’s more than 40% of the draftees. The “success” list is light; Rendon is ...
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the Bears clamped down and began to dominate, leaving the field at halftime with a 28-0 lead. Things only got worse for the Redskins, and by the end of the second half officials were asking Halas not to let his team kick for extra points, as they were running out of footballs after ...
4 回答我想问下<span class="sr-only">Toggle Navigation</span>这个是干嘛的? 1 回答<span class="sr-only">Toggle Navigation</span>这句话的意义 1 回答<span class="sr-only">Toggle Navigation</span>这句什么意思? 2...