CSS文字描边，文字间隔，div自定义形状切割

clip-path: polygon(
    0 0,
    68% 0,
    100% 32%,
    100% 100%,
    0 100%
);//这里切割出来是少一角的正方形

letter-spacing: 1vw; //文字间隔

-webkit-text-stroke: 1px #fff; //文字描边1px

uniapp微信小程序顶部导航栏设置透明，下拉改变透明度

onPageScroll(e) {if (!this.isUser) {return}this.scrollY = e.scrollTop;if (e.scrollTop > 40) {uni.setNavigationBarColor({frontColor: '#000000',backgroundColor: '#000000',})this.topTitleColor = '#000000'} else {uni.setNavigationBarColor({frontColor: '#ffffff',backgroundColor: '#ffffff',})this.topTitleColor = '#ffffff'}let opacity = 0if (e.scrollTop <= 100) {opacity = this.scrollY / 100;} else {opacity = 1}this.navBarColor = `rgba(255, 255, 255, ${opacity})`;},

<view v-if="isUser" class="nav-bar" :style="{backgroundColor: navBarColor,color:topTitleColor}"><!-- 导航栏内容 -->首页</view>

scrollY: 0, // 当前滚动距离  
navBarColor: 'rgba(255, 255, 255, 0)', // 导航栏背景颜色，初始为透明色  
topTitleColor: 'white',