html {
  height: 100%;
  overflow-x: hidden;
}
body {
  height: 100%;
  margin: 0;
  min-width: 640px;
}
.b-edit-page .l-wrapper .l-content-width {
  margin: auto;
  width: 950px;
}
.l-content-width {
  margin: auto;
  width: 640px;
}
.l-wrapper {
  min-height: 100%;
  width: 100%;
}
.l-header {
  margin: auto;      
  width: 100%;
  height: 200px;
  background-color: #3ea9f5; 
  position: relative;
}
.l-header:after {
  position: absolute;
  width: 38px;
  height: 20px;
  background: url(../images/blue-tail_640.png);
  content: "";
  display: block;
  top: 199px;
  left: 47%;
}
main {
  clear: both;
  padding-bottom: 100px;
  padding-top: 50px;
}
.l-footer {
    height: 155px;
    padding: 20px 0;
    float: left;
    width: 100%
}