How to remove css class from text in list view

Hello,
in my posts - http://infinitemandala.com/blog-2 - I have a css class applied to the first paragraph

.lead {

  margin-bottom: 20px;

  font-size: 18px;

  font-weight: normal;

  line-height: 1.5em;

  color: #666;

  font-style: italic;

}

I'd like to remove this class in the blog list view, when I was using Joomla articles I used this code

section.blog .lead {

  font-size: 100%;

  font-style: normal;

}

to overwrite the class css in the joomla list view

could you suggest a similar solution for easyblog, I tried some solutions but they do not seem to work, I am probably not good enough with css...

Thank you