Magazyn wycieraczek
Geek asks and answers

Hover this + after and this (n + 1) and before

jsfiddle.net/rqJAY/

HTML:

<table class="table_database_edit">
<tr><td>Magazyn wycieraczek</td><td>Edytuj</td><td>Usuń</td></tr>
<tr class="more" id=""><td colspan="3">aa</td></tr>
<tr><td>test</td><td>Edytuj</td><td>Usuń</td></tr>
<tr class="more" id=""><td colspan="3">aa</td></tr>
</table>

CSS

tr.more{
    #display: none;
}
table.table_database_edit{
    width: 100%;
    border-collapse:collapse;
    border-spacing: 0;
}
table.table_database_edit  tr:nth-child(4n+3), table.table_database_edit  tr:nth-child(4n+4){
    background-color: #EFF0F1;
}
table.table_database_edit  tr:hover:nth-child(n) + tr:nth-child(n):after{
    background-color: #FFFFCC;
}
table.table_database_edit  tr:hover:nth-child(n+1) + tr:nth-child(n+1):before{
    background-color: #FFFFCC;
}

I have a table. Every two lines are a group. Groups alternate the background color. Lines 1 and 2 are white. Lines 3 and 4 are gray. Lines 5 and 6 are white. Etc.

I want to set the background color to yellow when you hover over a group. How can i do this?

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3 answers

What you are looking for is this tbody. An element tbodyis similar to colgroup, but is used to group strings. From there, CSS is simple:

<table class="table_database_edit">
    <tbody>
        <tr><td>Magazyn wycieraczek</td><td>Edytuj</td><td>Usuń</td></tr>
        <tr class="more" id=""><td colspan="3">aa</td></tr>
    </tbody>

    <tbody>
        <tr><td>test</td><td>Edytuj</td><td>Usuń</td></tr>
        <tr class="more" id=""><td colspan="3">aa</td></tr>
    </tbody>
</table>

CSS

tr.more{
    #display: none;
}
table.table_database_edit{
    width: 100%;
    border-collapse:collapse;
    border-spacing: 0;
}
table.table_database_edit  tbody:nth-child(odd) tr {
    background-color: #EFF0F1;
}

table.table_database_edit  tbody:hover tr {
    background-color: #FFFFCC;
}

http://jsfiddle.net/rqJAY/13/

+5
source

You will need to change your HTML or use javascript. I thought about this a bit, and I think the answer is no for one reason.

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http://jsfiddle.net/rqJAY/2/

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JQuery

//Add group classes to rows
$('table.table_database_edit tr').each(function () {
    if ($('.table_database_edit tr').index($(this)) + 1 !== 1 && ($('.table_database_edit tr').index($(this)) + 1) % 4 === 0) {
        $(this).removeClass('groupOne').addClass('groupTwo');
        $(this).prev().removeClass('groupOne').addClass('groupTwo');
    } else {
        $(this).addClass('groupOne');
        $(this).next().addClass('groupOne');
    }
});

//Highlight groups of two
$('table.table_database_edit tr').hover(function () {
    if ($('.table_database_edit tr').index($(this)) === 0 || $('.table_database_edit tr').index($(this)) % 2 === 0) {
        $(this).addClass('highlight');
        $(this).next().addClass('highlight');
    } else {
        $(this).addClass('highlight');
        $(this).prev().addClass('highlight');
    }
}, function () {
    $('.table_database_edit tr').removeClass('highlight');
});

CSS:

table.table_database_edit {
    width: 100%;
    border-collapse:collapse;
    border-spacing: 0;
}
table.table_database_edit tr.groupOne {
    background-color: #fff;
}
table.table_database_edit tr.groupTwo {
    background-color: #EFF0F1;
}
table.table_database_edit tr.highlight {
    background-color: yellow;
}

, , !

: JSFiddle -

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