h1,h2,h3,h4,h5,h6,p{margin:0}p:last-child{margin-bottom:0}ul{margin:0;padding:0;list-style:none}a{color:currentColor;text-decoration:none}button{cursor:pointer}img{display:block;max-width:100%;height:auto}.nav-list{display:flex;gap:20px}.hov{transition:.2s ease-in}.hov:hover{color:#00f}.container{min-width:320px;max-width:375px;margin:0 auto;padding:0 16px}@media only screen and (min-width: 768px){.container{max-width:768px}}@media only screen and (min-width: 1200px){.container{max-width:1200px}}body{font-family:Roboto,sans-serif;background-color:#fafafa;color:#000;display:flex;flex-direction:column;align-items:center;justify-content:center;margin:0}.timer{display:flex;gap:20px;margin-top:30px;font-size:32px}input#datetime-picker{font-size:16px;padding:8px 12px;margin-right:8px;border:1px solid #ccc;border-radius:4px;outline:none}.form{width:200px;height:300px}.btn{margin-top:20px;height:40px;width:200px}.input{width:190px}