@import url("https://fonts.googleapis.com/css?family=Roboto&display=swap");h1,h2,h3,h4,h5{margin:2.75rem 0 1rem;font-family:'Roboto', sans-serif;font-weight:400;line-height:1.15}h1{margin-top:0;font-size:3.052em}h2{font-size:2.441em}h3{font-size:1.953em}h4{font-size:1.563em}h5{font-size:1.25em}p{margin-bottom:1.25em;color:#6c757d}small,.text_small{font-size:0.8em}li{color:#6c757d}body{margin:0;padding:5.5rem 0 0 0;font-size:16px;font-family:'Roboto', sans-serif;font-weight:400;line-height:1.5;color:#212529;background-color:#f8f9fa}nav{position:fixed;top:0;right:0;left:0;z-index:10;display:flex;flex-direction:column;padding:1rem;background-color:#343a40;overflow:hidden;height:3rem;transition:all ease 250ms}@media (min-width: 1024px){nav{flex-direction:row;justify-content:space-between;align-items:center}}nav.open{height:35rem}nav .logo{flex-grow:1}nav button{position:absolute;top:0;right:0;padding:1.75rem 1rem;background:none;border:none}@media (min-width: 1024px){nav button{display:none}}nav ul{display:inline-block;padding:0;margin:1.5rem 0 0 0}@media (min-width: 1024px){nav ul{display:flex;margin:0 0 0 2rem}}nav ul li{display:block;list-style:none}nav ul li a{display:inline-block;text-decoration:none;color:#fff;padding:0.5rem;width:100%}nav ul li a:hover{color:#007bff}nav ul li a:active{color:#007bff}main{max-width:50rem;margin:0 auto 10rem auto;padding:0 1rem}article{margin:4rem 0}article header{border-bottom:1px solid #dee2e6;padding-bottom:2rem}article section{margin:4rem 0}