an inline style cannot be overridden.
you would need to remove the inline style, and replace it with a class:
<img alt="" src="/images/cable.jpg" class="newsImage" />
on the main page, add the following CSS:
<style>
.newsImage {
padding: 5px;
margin-right: 5px;
width: auto;
height: auto;
border-width: 0px;
border-style: solid;
float: left;
}
</style>
and on the latest news page, use this css:
<style>
.newsImage {
padding: 5px;
margin-right: 5px;
width: 50px;
height: 50px;
border-width: 0px;
border-style: solid;
float: left;
}
</style>