css - :nth-child definition & when it meets tr and caption -


with code below found i'm confused definition of :nth-child

the :nth-child(n) selector matches every element nth child, regardless of type, of parent.

tr:nth-child(2n) {    background-color: gray;  }  table {    margin-left: 20px;    margin-right: 20px;    border-spacing: 0px;    border: thin solid black;    caption-side: bottom;    border-collapse: collapse;  }  td,  th {    border: thin dotted gray;    padding: 5px;  }  caption {    font-style: italic;    padding-top: 8px;  }
<table>    <caption>content</caption>    <tr>      <th>table head</th>    </tr>    <tr>      <td>111111</td>    </tr>    <tr>      <td>222222</td>    </tr>    <tr>      <td>333333</td>    </tr>    <tr>      <td>444444</td>    </tr>    <tr>      <td>555555</td>    </tr>    <tr>      <td>666666</td>    </tr>  </table>

and 111111, 333333, 555555 become gray. nothing changed after delete caption tag, 222222, 4444444, 666666 become gray after removed tr tag of table title. isn't :nth-child suppose count every element of parent?

the problem here html invalid. tr elements must wrapped within either thead, tbody or tfoot element, , browsers automatically fix sticking them in tbody.

your html on these browsers end looking this:

<table>   <caption>...</caption>   <tbody>     <tr>...</tr>     ...   </tbody> </table>

and thus, deleting <caption> element have no impact on positioning of tr elements.

if inspect <table> element, you'll see:

enter image description here


Comments

Post a Comment

Popular posts from this blog

asynchronous - C# WinSCP .NET assembly: How to upload multiple files asynchronously -

i using winscp .net assembly uploading files. want upload multiple files asynchronous way. have created method works single upload. public class uploadingdata { private sessionoptions _sessionoptions; private session _session; //connection etc private void onconnected() { foreach (var fileinfo in localfileslist) { var task = task.factory.startnew(() => uploadfilesasync(fileinfo)); } } private async task uploadfilesasync(string file) { string remotefilepath = _session.translatelocalpathtoremote(file, @"/", "/test_data_upload"); var uploading = _session.putfiles(file, remotefilepath, false); //when done await task.run(() => thread.sleep(1000)); } } please suggest me correct way. thanks you can use backgroundworker class this: string[] images = new string[50]; foreach (var path in images) { backgroundworker
Read more

aws api gateway - SerializationException in posting new Records via Dynamodb Proxy Service in API -

i getting "__type": "com.amazon.coral.service#serializationexception" as reply in postman & in test console in api gateway trying post record directly dynamodb using api proxy services.. referring aws article - https://aws.amazon.com/blogs/compute/using-amazon-api-gateway-as-a-proxy-for-dynamodb/ here's mapping { "tablename": "tablenamegoeshere", "item": { "id" : "$context.requestid" "eventname" : "$input.path('$.eventname')", "timestamp" : $input.path('$.timestamp'), "answers": "$util.parsejson($input.path('$.answers'))" } } update: did asked ... , worked if try add array of json objects gives me above same error - here's trying now. please - couldnt find on google well #set($inputroot = $input.path('$')) { "tablename": "answer", "item": {
Read more

asp.net - Problems sending emails from forum -

i have been redesigning site has message board, has been written guy looked after site. it has few problems , written in .asp , uses .mdb files database. you can see whole thing here . feel free post if helps, test thing have set using original files , new database. the basic problem when posts message, supposed email sent them, have posted it. when replies, originator supposed message, replier has been posted. i’d have thought @ point in process there should script/file in postmessage.asp? the postmessage.asp page below. <% option explicit %> <!-- #include virtual="common/adovbs.inc" --> <html> <head> <meta http-equiv="content-type" content="text/html; charset=windows-1252"> <meta name="generator" content="microsoft frontpage 4.0"> <meta name="progid" content="frontpage.editor.document"> <title>new page 2</title> <base target="_self"
Read more