.hero-section{background-size:cover;background-position:50%;background-repeat:no-repeat;height:90vh;position:relative}.hero-section:before{content:"";position:absolute;left:0;right:0;height:100%;background:rgba(0,0,0,.5);z-index:1}.hero-section.hero-one{background-image:url(/images/hero-img.jpg)}.hero-section.hero-two{background-image:url(/images/innovative-bg.jpg)}.hero-section.hero-three{background-image:url(/images/quality-bg.jpg)}.hero-section .content{position:relative;z-index:2;color:white}.about{background-image:url(/images/about.jpg)}.about,.product{background-size:cover;background-position:50%;background-repeat:no-repeat;height:55vh;position:relative}.product{background-image:url(/images/product3.jpg);display:flex;align-items:center;justify-content:center;text-align:center;overflow:hidden}.product:before{content:"";position:absolute;left:0;right:0;height:100%;background:rgba(0,0,0,.5);opacity:.3;filter:brightness(.9);z-index:1}