该文章使用版本
"sass": "1.26.8","sass-loader": "8.0.2"
sass-loader安装失败的话，请尝试安装8.0以上版本，可能是版本不兼容
flexible.js
(function flexible(window, document) {
var docEl = document.documentElement
var dpr = window.devicePixelRatio || 1
// adjust body font size
function setBodyFontSize() {
if (document.body) {
document.body.style.fontSize = 12 * dpr + 'px'
} else {
document.addEventListener('DOMContentLoaded', setBodyFontSize)
}
}
setBodyFontSize()
// set 1rem = viewWidth / 10
function setRemUnit() {
// 这里默认是10等份，手动改为24，此时1rem=1920/24px即80px。（设计稿是1920px的）
var rem = docEl.clientWidth / 24
docEl.style.fontSize = rem + 'px'
}
setRemUnit()
// reset rem unit on page resize
window.addEventListener('resize', setRemUnit)
window.addEventListener('pageshow', function(e) {
if (e.persisted) {
setRemUnit()
}
})
// detect 0.5px supports
if (dpr >= 2) {
var fakeBody = document.createElement('body')
var testElement = document.createElement('div')
testElement.style.border = '.5px solid transparent'
fakeBody.appendChild(testElement)
docEl.appendChild(fakeBody)
if (testElement.offsetHeight === 1) {
docEl.classList.add('hairlines')
}
docEl.removeChild(fakeBody)
}
})(window, document)
home.scss
// 1rem=80px
@function rem($px) {
@return $px / 80 * 1rem;
}
home.js
<script>
import '@/utils/flexible'
...
</script>
<style lang="scss" scoped>
@import '@/styles/home.scss';
...
height: rem(688);// 688px
...
</style>
