列表中未包含无序列表中的项目符号？

我的子弹在无序列表中超出了其阻止元素范围，出现了问题。这是正常现象吗，还是子弹不被视为文档流程的一部分？

在这个小提琴中，我的列表是无序的padding-left:0，您可以看到子弹正从其容器中推出。http://jsfiddle.net/E4WWu/1/

我必须给无序列表添加一些填充以“修复”此问题，如下所示：http : //jsfiddle.net/E4WWu/

我的问题是：<ul>元素为何不包含项目符号？是我的页面特定内容还是HTML / CSS中缺少的内容？

提前致谢。

的HTML

<div class="center-midright-container">
    <div class="infoBox"><span class="filler">Content Goes Here ...</span></div>
    <div class="innerBottom">
        <h3 class="instructHeader">Instructions<br/></h3>
        <ul class="instructText">
            <li>This is a list of instructions and this sentence is meant to be an item of the list. Each item can wrap around to the next line if it is long enough.</li>
            <li>This is a list of instructions and this sentence is meant to be an item of the list. Each item can wrap around to the next line if it is long enough.</li>
            <li>This is a list of instructions and this sentence is meant to be an item of the list. Each item can wrap around to the next line if it is long enough.</li>
        </ul>
    </div>
</div>

的CSS

h3 {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
}
h3 {
    color:#fff;
}
ul {
    list-style-image:url('http://oi43.tinypic.com/wb8nz9.jpg');
    padding-left:10px
}
h3.instructHeader {
    text-decoration:underline;
    text-align:center;
}
.center-midright-container {
    margin:0 auto;
    width: 700px;
}
.innerBottom {
    width:80%;
    border: 3px #b51700 ridge;
    background-color:#000;
    padding:10px;
    margin:0 auto;
    margin-top:25px;
}
.instructText {
    text-align:left;
    line-height:1.5;
    color:#fff;
}
/* This is actually filled with content in my page.  Here now just for a filler */
.infoBox {
    height:500px;
    background-color:#000;
    text-align:center;
    position:relative;
}
.filler {
    position:relative;
    top:47%;
    color:#fff;
}