Think in modules

• Establish single pieces of UI
• Control these with a Class
• Switch styles on sections easily

.news{
  background:white;
  border-radius:4px;
  padding:16px;
}
 
.news section{
  border:1px solid #ccc;
  padding:7px;
}
 
.news h3{
  font-size:24px;
  color:#333;
}
 
.news img{
  float:left;
  margin: 0 16px 16px 0;
}