.newtitle{text-align:center;font-size:20px;margin-top:100px;font-weight:bold}
.newtime{text-align:center;margin-top:20px}
.newcontent{width:1200px;margin:auto;margin-top:40px}
.newcontent p{font-size:15px;line-height:25px}
.newcontent img,.newcontent video{max-width:100%;height:auto}
.prev-next{width:1200px;margin:auto;margin-top:50px;margin-bottom:100px}
.prev-next a{color:black;line-height:30px}

@media screen and (max-width: 1500px) {
   .newcontent{width:80%}
   .prev-next{width:80%}
   .newtitle{margin-top:70px}
}

@media screen and (max-width: 1024px) {
    .newtitle{margin-top:40px}
    .prev-next{margin-bottom:70px}
}

@media screen and (max-width: 450px) {
    .newcontent{width:90%}
    .prev-next{width:90%}
    .newtitle{margin:auto;margin-top:20px;width:90%;font-size:18px}
    .prev-next{margin-bottom:50px}
    .newtime{margin-top:13px}
}