我目前正在为我的 iOS 应用程序开发 html 富文本编辑器，所以，设置很简单，我有一个 UIWebView 加载我的编辑器代码，html 输入是一个 'contentEditable' DIV .
问题是每次我选择这个 div 输入一些文本时，输入框上会出现一个浅灰色框，告诉用户文本字段已被选中。
注意:您可以在这个quick video中看到效果
我的问题是:如何去除这个浅灰色框？
我的 html 文件如下:
<html>
<head>
<style type="text/css">
:focus{
outline:0px solid transparent;
}
DIV::-moz-focus-inner {
background-color:#ff0000;
border: 0;
padding: 0;
}
ul{
margin-left:-10px;
}
ol{
margin-left:-10px;
}
blockquote {
border-left:#ff0000 5px double;
margin-left:0px;
}
</style>
</head>
<body onload="addImgAttributes();checkBlockquote();" topmargin="0" bottommargin="0" leftmargin="0" rightmargin="0">
<div
id="content"
class="content"
contenteditable="true"
style="font-family: Helvetica; background-color:#fff; color:#000; height:258px;"
autocapitalize="off"
autocorrect="off"
autocomplete="off"
spellCheck="false"
>
</div>
</body>
</html>
//-------------------------------------------- ---------------------------------------------- ------------------ 编辑 1 -----
在@StephenJ 发表评论后，我意识到这个灰色框架可能是 UIWebView 的 subview ，而不是 css 属性。我在框架出现的那一刻记录了 UIWebView 的 View 层次结构，这是日志:
2013-04-17 21:37:00.919 StrangeThings[1182:c07] <UIWebView: 0xa5ec3f0; frame = (7 7; 306 258); layer = <CALayer: 0xa5edf30>>
2013-04-17 21:37:00.919 StrangeThings[1182:c07] <_UIWebViewScrollView: 0xa5f7850; frame = (0 0; 306 258); clipsToBounds = YES; autoresize = H; gestureRecognizers = <NSArray: 0xa5f7e20>; layer = <CALayer: 0xa5f7aa0>; contentOffset: {0, 0}>
2013-04-17 21:37:00.920 StrangeThings[1182:c07] <UIImageView: 0xa5f90c0; frame = (0 0; 54 54); transform = [-1, 0, -0, -1, 0, 0]; alpha = 0; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0xa5f9120>>
2013-04-17 21:37:00.920 StrangeThings[1182:c07] <UIImageView: 0xa5f9030; frame = (0 0; 54 54); transform = [0, 1, -1, 0, 0, 0]; alpha = 0; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0xa5f9090>>
2013-04-17 21:37:00.920 StrangeThings[1182:c07] <UIImageView: 0xa5f8fa0; frame = (0 0; 54 54); transform = [0, -1, 1, 0, 0, 0]; alpha = 0; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0xa5f9000>>
2013-04-17 21:37:00.921 StrangeThings[1182:c07] <UIImageView: 0xa5f8b90; frame = (0 0; 54 54); alpha = 0; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0xa5f8f70>>
2013-04-17 21:37:00.921 StrangeThings[1182:c07] <UIImageView: 0xa5f8b00; frame = (-14.5 14.5; 30 1); transform = [0, 1, -1, 0, 0, 0]; alpha = 0; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0xa5f8b60>>
2013-04-17 21:37:00.922 StrangeThings[1182:c07] <UIImageView: 0xa5f8a70; frame = (-14.5 14.5; 30 1); transform = [0, -1, 1, 0, 0, 0]; alpha = 0; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0xa5f8ad0>>
2013-04-17 21:37:00.922 StrangeThings[1182:c07] <UIImageView: 0xa5f89e0; frame = (0 0; 1 30); transform = [-1, 0, -0, -1, 0, 0]; alpha = 0; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0xa5f8a40>>
2013-04-17 21:37:00.922 StrangeThings[1182:c07] <UIImageView: 0xa5f8950; frame = (0 0; 1 30); alpha = 0; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0xa5f89b0>>
2013-04-17 21:37:00.923 StrangeThings[1182:c07] <UIImageView: 0xa5f88c0; frame = (0 228; 306 30); alpha = 0; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0xa5f8920>>
2013-04-17 21:37:00.923 StrangeThings[1182:c07] <UIImageView: 0xa5f8750; frame = (0 0; 306 30); transform = [-1, 0, -0, -1, 0, 0]; alpha = 0; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0xa5f8630>>
2013-04-17 21:37:00.924 StrangeThings[1182:c07] <UIWebBrowserView: 0xc270400; frame = (0 0; 306 258); text = ''; gestureRecognizers = <NSArray: 0xa5f5ac0>; layer = <UIWebLayer: 0xa5f0820>>
2013-04-17 21:37:00.925 StrangeThings[1182:c07] <UIHighlightView: 0xa5ef210; frame = (-4 -4; 314 266); opaque = NO; layer = <CALayer: 0xa5c0730>>
2013-04-17 21:37:00.925 StrangeThings[1182:c07] <UIImageView: 0xa0bebc0; frame = (0 251; 306 7); alpha = 0; opaque = NO; autoresize = TM; userInteractionEnabled = NO; layer = <CALayer: 0xa0bec60>>
2013-04-17 21:37:00.925 StrangeThings[1182:c07] <UIImageView: 0xa0b37d0; frame = (299 0; 7 258); alpha = 0; opaque = NO; autoresize = LM; userInteractionEnabled = NO; layer = <CALayer: 0xa0becd0>>
在分析了所有这些 subview 之后，我发现了一个名为 UIHighlightView 的 View ，正如名称所证实的那样，这个 View 可能会突出显示 webView。所以我的第二个问题是:如何删除这个 View ？
最佳答案
就像设置以下 CSS 规则一样简单。
div {
-webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}
这使得应用的阴影变得透明，所以它看起来就像消失了一样。
编辑:这是一个demo link .
关于html - 从 iOS 上的 html 输入中删除选择灰色阴影，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/16051197/