@import 'normalize.css';

body,
.cf {
  *zoom: 1;
}
body:before,
.cf:before,
body:after,
.cf:after {
  content: '';
  display: table;
}
body:after,
.cf:after {
  clear: both;
}
*,
*:before,
*:after {
  *behavior: url("js/vendor/boxsizing.htc");
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
h1, figure, fieldset {
  margin: 0;
}
html {
  overflow-x: hidden;
}
body {
  width: 100%;
  overflow-x: hidden;
  overflow-y: scroll;
}
img,
video,
audio,
embed,
object,
input,
iframe {
  max-width: 100%;
}
.browsehappy {
  width: 100%;
  padding: 15px;
  background: #333;
  color: #fff;
  font-size: 13px;
  line-height: 21px;
  cursor: pointer;
  text-align: center;
}
.browsehappy a {
  color: #fff;
  font-weight: bold;
}
.browsehappy a:hover {
  text-decoration: none;
}

@import 'normalize.css';

body,
.cf {
  *zoom: 1;
}
body:before,
.cf:before,
body:after,
.cf:after {
  content: '';
  display: table;
}
body:after,
.cf:after {
  clear: both;
}
*,
*:before,
*:after {
  *behavior: url("js/vendor/boxsizing.htc");
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
h1, figure, fieldset {
  margin: 0;
}
html, body {
  height: 100%;
  overflow-x: hidden;
}
body {
  width: 100%;
  overflow-y: scroll;
}
img,
video,
audio,
embed,
object,
input,
iframe {
  max-width: 100%;
}
.browsehappy {
  width: 100%;
  padding: 15px;
  background: #333;
  color: #fff;
  font-size: 13px;
  line-height: 21px;
  cursor: pointer;
  text-align: center;
}
.browsehappy a {
  color: #fff;
  font-weight: bold;
}
.browsehappy a:hover {
  text-decoration: none;
}

Make html, body height: 100%
Make html, body height: 100%