@import url('https://fonts.googleapis.com/css?family=Roboto&display=swap');
body{
    margin: 0 auto;
    background-repeat: no-repeat;
    background-color: tomato;
    font-family: 'Roboto', sans-serif;
    overflow: hidden;
}

.header{
    background-color: #333;
    top: 0;
    width: 100%;
    padding: 6px;
}
h2{
    text-align: center;
    color: #fff;
}

a{text-decoration: none; color: #fff; }

.clearbox{
    display: block;
    width: 300px;
    height: 150px;
}

.main{
    display: block;
    text-align: center;
    margin: 0 auto;
}

h1#box{
    padding: 12px;
    text-align: center;
    border-width: 2px;
    border-style: solid;
    width: 80px;
    display: inline-block;
    margin: 0 auto;
    border-radius: 10px;
    color: #fff;
    cursor: pointer;
}