:root{color-scheme:light dark}*{font-family:Arial,Helvetica,sans-serif}html,body{height:100%;margin:0}app-root{height:100%;display:flex;flex-direction:column}main{margin:1em auto;width:90%}h1{font-size:250%}h2,h3{font-weight:lighter;margin:.4em 0}body,button{font-family:Cambria,Georgia,serif}button{border:none;border-radius:4px;cursor:pointer;padding:.2rem .4rem;margin-right:.2rem;margin-bottom:.2rem;margin-top:.2rem}.footer{margin-top:auto}