*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px}img,svg,video,canvas{display:block;max-width:100%}button,input,textarea{font:inherit}button{border:0}a{color:inherit;text-decoration:none}h1,h2,h3,p{margin:0}