javascript - jQuery CSS Hover - Stack Overflow

admin管理员组

文章数量:1279083

I have a CSS menu that sets the parent li's color when hovering over it and it's child ul (submenu). Basically, when you hover over the menu, it changes colour and remains that way until you mouseoff the menu and it's submenu. It looks nice.

I've added some jQuery code to change the colour of the menu items when until a certain page is opened. Then, those menus will fade back in and regain colour. At which point, waiting for a hover to change colour.

The problem I'm having is, when you change the colour back to it's original state (set in CSS) with jQuery, it removes the :hover class preventing the colour change when hovering over it and it's child submenu. Any ideas on how to fix this? Is there a selector with jQuery that'll allow me to set the :hover class back to normal?

/* ---- Menu Colours ---- */
$(document).ready(function()
{
   var colours = ['d50091', 'c8fa00', '00b4ff', 'b158fc', 'ffa800', '00b72f'];
   var counter = 0; // Loop for the colurs
   var status  = 0; // Status of the colours (greyed out or visible)

   $('ul.menu-horiz').children('li').children('a').hover(function()
   {
      $(this).parent()[0].css('color', '#d50091');
   }, function()
   {
      $(this).parent()[0].css('color', '#b6b6b6');
   });

   $('ul.menu-horiz').children('li').children('a').each(function()
   {
      $(this).css({opacity: 0.2, color: '#' + colours[counter]});
      counter++;
   });

   $('.haccordion .header').click(function()
   {
      if (window.location.hash.substr(1) == 'photogallery')
      {
         $('ul.menu-horiz').children('li').children('a').each(function()
         {
            if ($(this).css('opacity') != '1.1')
            {
               $(this).animate({opacity: 1.1}, 1000).css('color', '#b6b6b6');
            }
         });
      }
      else
      {
         counter = 0;
         if ($('ul.menu-horiz').children('li').children('a').css('opacity') != '0.2')
         {
            $('ul.menu-horiz').children('li').children('a').animate({opacity: 0.2}, 1000, function()
            {
               $('ul.menu-horiz').children('li').children('a').each(function()
               {
                  $(this).css('color', '#' + colours[counter]);
                  counter++;
               });
            });
         }
      }
   });
});

I have a CSS menu that sets the parent li's color when hovering over it and it's child ul (submenu). Basically, when you hover over the menu, it changes colour and remains that way until you mouseoff the menu and it's submenu. It looks nice.

I've added some jQuery code to change the colour of the menu items when until a certain page is opened. Then, those menus will fade back in and regain colour. At which point, waiting for a hover to change colour.

The problem I'm having is, when you change the colour back to it's original state (set in CSS) with jQuery, it removes the :hover class preventing the colour change when hovering over it and it's child submenu. Any ideas on how to fix this? Is there a selector with jQuery that'll allow me to set the :hover class back to normal?

/* ---- Menu Colours ---- */
$(document).ready(function()
{
   var colours = ['d50091', 'c8fa00', '00b4ff', 'b158fc', 'ffa800', '00b72f'];
   var counter = 0; // Loop for the colurs
   var status  = 0; // Status of the colours (greyed out or visible)

   $('ul.menu-horiz').children('li').children('a').hover(function()
   {
      $(this).parent()[0].css('color', '#d50091');
   }, function()
   {
      $(this).parent()[0].css('color', '#b6b6b6');
   });

   $('ul.menu-horiz').children('li').children('a').each(function()
   {
      $(this).css({opacity: 0.2, color: '#' + colours[counter]});
      counter++;
   });

   $('.haccordion .header').click(function()
   {
      if (window.location.hash.substr(1) == 'photogallery')
      {
         $('ul.menu-horiz').children('li').children('a').each(function()
         {
            if ($(this).css('opacity') != '1.1')
            {
               $(this).animate({opacity: 1.1}, 1000).css('color', '#b6b6b6');
            }
         });
      }
      else
      {
         counter = 0;
         if ($('ul.menu-horiz').children('li').children('a').css('opacity') != '0.2')
         {
            $('ul.menu-horiz').children('li').children('a').animate({opacity: 0.2}, 1000, function()
            {
               $('ul.menu-horiz').children('li').children('a').each(function()
               {
                  $(this).css('color', '#' + colours[counter]);
                  counter++;
               });
            });
         }
      }
   });
});

• javascript
• jquery
• css
• hover

• You have $('ul.menu-horiz').children('li').children('a') three times. You should save that of to a variable and gain some efficiency. – Justin Johnson Commented Oct 29, 2009 at 7:45

2 Answers 2

You should be able to use the :hover selector and pass in an over() and out() function that set and unset the hover color respectively. See the :hover documentation for more.

Simple Example

given the CSS:

<style>
   .blue { background-color: blue; }
   .red { background-color: red; }
</style>

do something like this:

$('li').hover(function() {
      $(this).removeClass('red'); 
      $(this).addClass('blue');
   }, 
   function() {
      $(this).removeClass('blue'); 
      $(this).addClass('red');
   })

I was having issues applying the colour change to the when hovering over it's parent

$('ul.menu-horiz').children('li').hover(function()
{
   $(this).children('a').css('color', '#d50091');
}, function()
{
   $(this).children('a').css('color', '#b6b6b6');
});