CSS 确定选中变红色

textarea:focus {
border: 1px solid #f4645f;
outline: none;
}
blockquote {
border-left: 4px solid #f4645f;
}
pre {
padding: 0;
background: none;
border: none;
}
::-moz-selection {
color: #ffffff;
background: #f4645f;
text-shadow: none;
}
::selection {
color: #ffffff;
background: #f4645f;
text-shadow: none;
}