*{
  margin:0;
  padding:0;
}
ul,li{
  list-style: none;
}
a{
  text-decoration: none;
  color:#000
}
.clearfix:before,
.clearfix:after {
    content: " ";
    display: table;
}

.clearfix:after {
    clear: both;
}
.al-c{
  text-align: center;
}
.fl{
  float: left;
}
.fr{
  float: right;
}
.f12{
  font-size: 12px;
}
.f16{
  font-size: 16px;
}
.f14{
  font-size: 14px;
}
.f15{
  font-size: 15px;
}
.f18{
  font-size: 18px;
}
.f20{
  font-size: 20px;
}
.f40{
  font-size: 40px;
}
.ml{
  margin-left: 10px;
}
.ml20{
  margin-left: 20px;
}
.mr{
  margin-right: 10px;
}
.mr20{
  margin-right: 10px;
}
.mt{
  margin-top: 10px;
}
.mt20{
  margin-top: 20px;
}
.mb{
  margin-bottom: 10px;
}
.mb20{
  margin-bottom: 20px;
}
.pl{
  padding-left: 10px;
}
.pl20{
  padding-left: 20px;
}
.pr{
  padding-right: 10px;
}
.pr20{
  padding-right: 20px;
}
.pt{
  padding-top: 10px;
}
.pt20{
  padding-top: 20px;
}
.pb{
  padding-bottom: 10px;
}
.pb20{
  padding-bottom: 20px;
}
.padding{
  padding: 10px;
}
.margin{
  margin: 10px;
}
.white-bg{
  background: #fff;
}
.underline{
  text-decoration: underline;
}
.pointer{
  cursor: pointer;
}
.bold{
  font-weight: bold;
}
.flex{
  flex: 1;
}
.flex-center{
  display: flex;
  justify-content: center;
  align-items: center;
}
.flex-around{
  display: flex;
  justify-content: space-around;
  align-items: center;
}
.flex-between{
  display: flex;
  justify-content: space-between;
  align-items: center;
}