*{box-sizing:border-box}body{margin:0;font-family:Trebuchet MS,Lucida Sans Unicode,Lucida Grande,Lucida Sans,Arial,sans-serif}main{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:2em;height:50vh;border:1px solid red}button{font-family:inherit;font-size:1.5rem;font-weight:600;color:#fff;padding:2em;border:none;background:#006400}p{font-weight:500}