相应的H标签对应相应颜色，使用方法只在在你主题里的Style.css替换相应样式即可。

哦对了，border-radius: 0rem;

h1 {
font-weight: bold;
background-color: #f6f6f6;
margin: 20px 0;
border-bottom: 0px solid red;
padding: 5px 12px;
border-left: 5px solid red;
margin: 12px 0px;
border-radius: 0rem;
}
h2 {
font-weight: bold;
background-color: #f6f6f6;
margin: 20px 0;
border-bottom: 0px solid #FF1493;
padding: 5px 12px;
border-left: 5px solid #FF1493;
border-radius: 0rem;
margin: 12px 0px;
}
h3 {
font-weight: bold;
background-color: #f6f6f6;
margin: 20px 0;
border-bottom: 0px solid #4169E1;
padding: 5px 12px;
border-left: 5px solid #4169E1;
margin: 12px 0px;
border-radius: 0rem;
}
 h4 {
font-weight: bold;
background-color: #f6f6f6;
margin: 20px 0;
border-bottom: 0px solid #3CB371;
padding: 5px 12px;
border-left: 5px solid #3CB371;
margin: 12px 0px;
border-radius: 0rem;
}
h5 {
font-weight: bold;
background-color: #f6f6f6;
margin: 20px 0;
border-bottom: 0px solid #FFC0CB;
padding: 5px 12px;
border-left: 5px solid #FFC0CB;
margin: 12px 0px;
border-radius: 0rem;
}