css3 渐变 两边透明中间高亮 linear-gradient()

转载请标注原作者：https://www.cnblogs.com/fmixue/p/8309883.html#top

.linear{
            width:100%;
            height:2px;
            background: linear-gradient( 
            to right, 
            rgba(0,0,0,0) 0%, 
            rgba(0,0,0,0) 10%, 
            rgba(35,198,200,0.3) 20%, 
            rgba(35,198,200,0.4) 30%, 
            rgba(35,198,200,0.5) 40%, 
            rgba(35,198,200,0.8) 50%,
            rgba(35,198,200,0.5) 60%, 
            rgba(35,198,200,0.4) 70%, 
            rgba(35,198,200,0.3) 80%, 
            rgba(0,0,0,0) 90%,
            rgba(0,0,0,0) 100%)
        }