.linka{ width:40%; float:left;margin:4% 2%;
  height:52px; line-height:52px;
  background:inherit;
  background-color:#eaf3fa;
  box-sizing:border-box;
  border-width:1px;
  border-style:solid;
  border-color:rgba(217, 217, 217, 1);
  border-radius:4px;
  -moz-box-shadow:none;
  -webkit-box-shadow:none;
  box-shadow:none;
  font-family:'Microsoft YaHei Regular', 'Microsoft YaHei';
  font-weight:400;
  font-style:normal;
  font-size:18px;
  color:rgba(0, 0, 0, 0.647058823529412);
  text-align:center;}