#content{margin: 0 auto;max-width: 480px;position: relative;z-index: 10;}
#content h1{height: 2px;overflow: scroll;margin: 5px;}
body{position: relative;width: 100%;height: 100%;overflow: auto;margin: 0;padding: 5px;box-sizing: border-box;}
body::after{content: "";position: fixed;width: 100%;height: 100%;opacity: 0.5;left: 0;top: 0;}
.logo-img{text-align: center;}
.image-box{height: 300px;width: 480px;}
.imgb{height: 100px;width: 33.333%;float: left;overflow: hidden;}
.image-box img{height: 100%;min-width: 100%;}
@media (max-width: 768px) {.image-box{width: 100%;}}
nav{display: flex;margin: 10px 0;}
nav a{font-size: 12px;width: 20%;overflow: hidden;height: 18px;text-decoration: none;color: rgb(110, 110, 110);}
nav a:hover{color: red;}
footer{font-size: 14px;margin:10px 0;}
footer a{color: blue;text-decoration: none;}
figure {margin: 0;}