CSS question with cake.generic.css: Can't decrease the width of a table inside a division

I have two division with float: left;

div#loadwhat {
    float: left;
    width: 78%;
    padding-right: 5px;
}

div#id_div_rightside {
    float: left;
    width: 20%;
    height: 100%;
    border-left:solid thin #ff9900;
}

But the table inside loadwhat division is much wider than the loadwhat division. Why is that ?

开发者_StackOverflowI want to decrease the width of table. I tried to set width: xx for table but it didn't work.

In cake.generic.css

table {
    background: #fff;
    border-right:0;
    clear: both;
    color: #333;
    margin-bottom: 10px;
    width: 100%;
}

How can i solve this problem ?

Perhaps try removing the table width and add table-layout:fixed;. This may even out the rows in many browsers. Here is more detail: http://reference.sitepoint.com/css/table-layout