Html 为CSS代码创建一个类

为下面提到的代码创建自定义CSS类。我正在使用此代码在WordPress中显示表格。任何人，请引导我为这段代码创建一个单独的CSS类。提前谢谢

body {
  font-family: "Open Sans", sans-serif;
  line-height: 1.25;
}
table {
  border: 1px solid #ccc;
  border-collapse: collapse;
  margin: 0;
  padding: 0;
  width: 100%;
  table-layout: fixed;
}
table caption {
  font-size: 1.5em;
  margin: .5em 0 .75em;
}
table tr {
  background: #f8f8f8;
  border: 1px solid #ddd;
  padding: .35em;
}
table th,
table td {
  padding: .625em;
  text-align: center;
}
table th {
  font-size: .85em;
  letter-spacing: .1em;
  text-transform: uppercase;
}
@media screen and (max-width: 600px) {
  table {
    border: 0;
  }
  table caption {
    font-size: 1.3em;
  }
  table thead {
    border: none;
    clip: rect(0 0 0 0);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
  }
  table tr {
    border-bottom: 3px solid #ddd;
    display: block;
    margin-bottom: .625em;
  }
  table td {
    border-bottom: 1px solid #ddd;
    display: block;
    font-size: .8em;
    text-align: right;
  }
  table td:before {
    /*
    * aria-label has no advantage, it won't be read inside a table
    content: attr(aria-label);
    */
    content: attr(data-label);
    float: left;
    font-weight: bold;
    text-transform: uppercase;
  }
  table td:last-child {
    border-bottom: 0;
  }
}

---

给您的表设置一个类，如

，然后对css执行此操作

body {
  font-family: "Open Sans", sans-serif;
  line-height: 1.25;
}
.sep-table {
  border: 1px solid #ccc;
  border-collapse: collapse;
  margin: 0;
  padding: 0;
  width: 100%;
  table-layout: fixed;
}
.sep-table caption {
  font-size: 1.5em;
  margin: .5em 0 .75em;
}
.sep-table tr {
  background: #f8f8f8;
  border: 1px solid #ddd;
  padding: .35em;
}
.sep-table th,
.sep-table td {
  padding: .625em;
  text-align: center;
}
.sep-table th {
  font-size: .85em;
  letter-spacing: .1em;
  text-transform: uppercase;
}
@media screen and (max-width: 600px) {
  .sep-table {
    border: 0;
  }
  .sep-table caption {
    font-size: 1.3em;
  }
  .sep-table thead {
    border: none;
    clip: rect(0 0 0 0);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
  }
  .sep-table tr {
    border-bottom: 3px solid #ddd;
    display: block;
    margin-bottom: .625em;
  }
  .sep-table td {
    border-bottom: 1px solid #ddd;
    display: block;
    font-size: .8em;
    text-align: right;
  }
  .sep-table td:before {
    /*
    * aria-label has no advantage, it won't be read inside a table
    content: attr(aria-label);
    */
    content: attr(data-label);
    float: left;
    font-weight: bold;
    text-transform: uppercase;
  }
  .sep-table td:last-child {
    border-bottom: 0;
  }
}

---

此代码不起作用。您是否将表设置为“sep table”类？你应该认真学习html和css的基础知识，还有很多教程和有用的网站。看看W3schools这显然是个怪人问题。如果不是，它显然缺乏最基本的研究工作-1@connexo我编辑了问题请删除暂停