How to use Alibaba iconfot? for css pseudo-classes

Why is there a small box that does not display icons

.el-message-box__title::before {
    font-family:"iconfont" !important;
    font-size:16px;
    font-style:normal;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    content: "\e62a";
  }
Css
Jun.10,2021

Has

@ font-face written yet?

in addition, it should be easy to troubleshoot by looking at the elements.

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e453cf-44b38.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e453cf-44b38.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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