.flex-align-center,
.flex {
  display: flex;
  align-items: center;
}
.flex-align-center.center,
.flex.center {
  justify-content: center;
}
.flex-align-center.space-between,
.flex.space-between {
  justify-content: space-between;
}
.flex-align-center.space-around,
.flex.space-around {
  justify-content: space-around;
}
.flex-align-center.space-evenly,
.flex.space-evenly {
  justify-content: space-evenly;
}
.flex-align-center.end,
.flex.end {
  justify-content: flex-end;
}
.flex {
  align-items: flex-start;
}
.mgt24 {
  margin-top: 24px;
}
.mgb24 {
  margin-bottom: 24px;
}
.mgb12 {
  margin-bottom: 12px;
}
.mgl12 {
  margin-left: 12px;
}
.text-grayer {
  color: #999;
}
.text-gray {
  color: #666;
}
.ftsz16 {
  font-size: 16px;
}
.def-bold {
  font-weight: bold;
}
/*包含以下四种的链接*/
a {
  text-decoration: none;
  color: inherit;
}
/*正常的未被访问过的链接*/
a:link {
  text-decoration: none;
}
/*已经访问过的链接*/
a:visited {
  text-decoration: none;
}
/*鼠标划过(停留)的链接*/
a:hover {
  text-decoration: none;
}
/* 正在点击的链接*/
a:active {
  text-decoration: none;
}