如何将外部css文件中的css规则包含到html中（将css和html合并到一个文件中）

Question

我正在将报告生成为html文件，目前，css代码位于外部CSS文件中，并已链接到html文件中。它工作正常，但我需要在html文件中包含css规则，因此不必在每次发送html报告时都附加css文件。

我尝试将css代码复制到html标头中的样式部分。

这是CSS代码：

@import "compass/css3";

@import "compass/css3";
@import url(https://fonts.googleapis.com/css?family=Patua+One|Open+Sans);

* { 
  -moz-box-sizing: border-box; 
  -webkit-box-sizing: border-box; 
    box-sizing: border-box; 
}

body {
  background:#353a40;
}

table {
  border-collapse: separate;
  background:#fff;
  @include border-radius(5px);
  margin:50px auto;
  @include box-shadow(0px 0px 5px rgba(0,0,0,0.3));
}

thead {
  @include border-radius(5px);
}

thead th {
  font-family: 'Patua One', cursive;
  font-size:16px;
  font-weight:400;
  color:#fff;
  @include text-shadow(1px 1px 0px rgba(0,0,0,0.5));
  text-align:left;
  padding:20px;
  @include background-image(linear-gradient(#646f7f, #4a5564));
  border-top:1px solid #858d99;

  &:first-child {
   @include border-top-left-radius(5px); 
  }

  &:last-child {
    @include border-top-right-radius(5px); 
  }
}

tbody tr td {
  font-family: 'Open Sans', sans-serif;
  font-weight:400;
  color:#5f6062;
  font-size:13px;
  padding:20px 20px 20px 20px;
  border-bottom:1px solid #e0e0e0;

}

tbody tr:nth-child(2n) {
  background:#f0f3f5;
}

tbody tr:last-child td {
  border-bottom:none;
  &:first-child {
    @include border-bottom-left-radius(5px);
  }
  &:last-child {
    @include border-bottom-right-radius(5px);
  }
}

tbody:hover > tr td {
  @include opacity(0.5);

  /* uncomment for blur effect */
  /* color:transparent;
  @include text-shadow(0px 0px 2px rgba(0,0,0,0.8));*/
}

tbody:hover > tr:hover td {
  @include text-shadow(none);
  color:#2d2d2d;
  @include opacity(1.0);
}