.jgb{
  display: inline-block;
  cursor: pointer;
  font-size: 16px;
  color: #fff;
  border: 1px solid #38ac9d; 
   margin:1px;
  border-radius: 30px;
  height: 38px;
  width:120px;
  background-color: #16baaa;
}
.foot
{
     background-color: #16baaa;
      border: 1px solid #38ac9d; 
      width:500px;
          display: grid;
    place-items: center; /* 同时水平和垂直居中 */
}