Need a dashed line before and after some text html

HTML

<div class='container'>
    <img src='http://dummyimage.com/100/000/fff' />  
    <div class='line'></div>
</div>

<div class='container'>
    <span class='text'>some text</span>
    <div class='line'></div>
</div>

CSS

.container {
    position: relative;
    text-align: center;
}

.line {
    height:5px;
    width: 10px;
    background:red;
    position: absolute;
    top: 50%;
    z-index: -2;
}

.text {
    background-color: #FFF;
    padding: 0 3px;
}