why the margin-top is larger than its setted under IE8?

the link: http://xanlz.com/test/test.html

the css:开发者_如何学Python

    .hot-version, .week-down, .total-down, .tag {
        border: 1px solid #D4D4D4;
        height: 286px;
        margin-top: 10px;
        padding: 1px;
}

the red part margin-top is larger in IE8 and ok under firefox,IE7. why? how to correct it?

---

Use css hacks: IE7 and below can parse *property: value

.hot-version, .week-down, .total-down, .tag {
        border: 1px solid #D4D4D4;
        height: 286px;
        margin-top: 10px; //for IE8
        *margin-top: //another value for IE7;
        padding: 1px;
}

EDIT: These two links provide more hacks for IE6/7/8:
http://dimox.net/personal-css-hacks-for-ie6-ie7-ie8/
http://www.webdevout.net/css-hacks#in_css