Highlight lines of text on mouseover [duplicate]

Answer 1

Wrote some jQuery code that, atleast to me, both looks and works better than the code in the post that you are referring to. Hope it fits your needs :)

There's also a live demo up at http://jsfiddle.net/gFTrS/2/

HTML

    

    
Your text goes here

CSS

.textWrapper
{
    position: relative;
    width: 600px;
    padding: 0px 10px;
    margin: 0 auto;
    cursor: default;
}

.textWrapper p
{
    font: normal 12px Arial;
    color: #000000;
    line-height: 18px;
    padding: 0;
    margin: 0;
}

.highlight
{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 18px;
    background: yellow;
    z-index: -1;
    display: none;
}

jQuery

$(document).ready(function()
{
    var lineHeight = 18;

    $('.textWrapper').hover(function()
    {
        $('.highlight', this).show();

        $(this).mousemove(function(e)
        {
            var relativePos = e.pageY - this.offsetTop;
            var textRow = (Math.ceil(relativePos / lineHeight) * lineHeight) - lineHeight;
            if (textRow => 0)
            {
                $('.highlight', this).css('top', textRow + 'px');
            }
        });
    }, function()
    {
        $('.highlight', this).hide();
    });
});