h1 {
  text-transform: capitalize;
}

h2 {
  text-transform: capitalize;
}

h3 {
  text-transform: capitalize;
}

h4 {
  text-transform: capitalize;
}

div.tip {
  margin-left : 5%;
  margin-right : 5%;
  padding-left: 2%;
  padding-right: 2%;
  background-color: Silver;
  color:Black;
  border: ridge;
}

#bannerLeft img {
  float:left;
  position: relative;
  top: 18px;
  left: 40px;

}

#banner {
  border-bottom: 1px solid #fff;
  background: url("../images/banner.jpg") repeat scroll 0% 0% transparent;
}

h1 {
  text-transform: capitalize;
}

h2 {
  text-transform: capitalize;
}

h3 {
  text-transform: capitalize;
}

h4 {
  text-transform: capitalize;
}

div.tip {
  margin-left : 5%;
  margin-right : 5%;
  padding-left: 2%;
  padding-right: 2%;
  background-color: Silver;
  color:Black;
  border: ridge;
}

#bannerLeft img {
  float:left;
  position: relative;
  top: 18px;
  left: 40px;

}

#banner {
  border-bottom: 1px solid #fff;
  background: url("../images/banner.jpg") repeat scroll 0 0 transparent;
}

Remove units for zero values in CSS
Remove units for zero values in CSS

Fix according to CSSLint [Disallow units for zero values](https://github.com/CSSLint/csslint/wiki/Disallow-units-for-zero-values) rule.