.clear-0 {  clear: both;  height: 0;  font-size: 0;  float: none;  overflow: hidden;}
.clear-10 {  clear: both;  height: 10px;  font-size: 0;  float: none;  overflow: hidden;}
.clear-20 {  clear: both;  height: 20px;  font-size: 0;  float: none;  overflow: hidden;}
.clear-30 {  clear: both;  height: 30px;  font-size: 0;  float: none;  overflow: hidden;}
.clear-40 {  clear: both;  height: 40px;  font-size: 0;  float: none;  overflow: hidden;}
.clear-50 {  clear: both;  height: 50px;  font-size: 0;  float: none;  overflow: hidden;}
.clear-100 {  clear: both;  height: 100px;  font-size: 0;  float: none;  overflow: hidden;}