Pseudoelements in IE7

HTML

<div class="container">Hallo</div>

CSS

.container {
    scrollbar-base-color:expression(this.runtimeStyle.scrollbarBaseColor="#8C8CC6",this.innerHTML = "<s>Foo</s>"+this.innerHTML);
}

.container:before,
.container > s {
    content: 'Foo';
    display: block;
}