@-ms-viewport{width:device-width}html{font-size:medium}body{padding:12px;line-height:1.5;line-height:calc(1em + .5rem);max-width:min(700px,90dvw)}*,*::before,*::after{box-sizing:border-box}.box{border:2px solid red;padding:1em;margin-bottom:1em}.box p{margin:0}h1,h2,h3,h4,h5,h6{margin:1em 0 .5em}h1:first-child,h2:first-child,h3:first-child,h4:first-child,h5:first-child,h6:first-child{margin-top:0}p,ul{margin:0 0 1em}