css 基础知识CSS 2018

Posted 2021-05-13

.classname {
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23);
}

:root {
  font-size: 12px;
}
@media (min-width: 768px) {
  :root {
    font-size: 14px;
  }
}
@media (min-width: 992px) {
  :root {
    font-size: 16px;
  }
}
@media (min-width: 1200px) {
  :root {
    font-size: 18px;
  }
}

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