h1,h2,h3{color:red;}
mark {background-color:#c2ff68; font-weight:bold;}

blockquote{
    margin: 1em 3em 1em 1em;
    padding:  .2rem .6rem;
    font-weight: 400;
    border-left: .2rem solid #00a2ff;
    background-color: #f2f6f9;
    font-size: 1em;
    line-height: 1.6em;
}

pre {
    margin:5px auto;
    padding:5px 5px;
    border:1px solid #ddd;
    border-left:4px solid #58749c;
    white-space:pre-wrap;
    word-wrap:break-word;
    letter-spacing:1.5px;
    line-height:22px;
    background-size:100% 44px
}