.about-main{margin: 100px auto 0;width: 75%;}
.about-main ul{
   text-align: center;
   display: flex;
   flex-wrap: wrap;
   justify-content: space-between;
}
.about-main ul li{
    width: 30%;
    margin-bottom: 20px;
    position: relative;
}
.about-main ul li p{font-size:16px;}
.alzs-img img{width:100%;}
.alzs-img div{width:100%;height:100%;display:none;background: rgba(0, 0, 0, 0.3);position: absolute;top: 0;z-index: 1;}
.alzs-img div p{color: #ffffff;margin: 35% auto;}

.about-main ul li:hover div{display: block;}

.alzs-font p{
    line-height: 60px;
    background-color: #fafafa;
    position: relative;
    z-index: 1;
}

.about-main ul li:hover .alzs-font p{
    background-color: #bc1717; color: #fff;
}

@media(max-width:800px){
    .about-main{margin:50px auto;width: 95%;}
    .about-main ul li{width:100%;}
    .about-main ul li p{font-size:14px;}
}