* {
    box-sizing: border-box;
}

.box{
    position: relative;
    border-radius: 50%;
    background-color: red;
    width: 100px;
    height: 100px;
}

body{
    text-align: center;
    font-size: 1.5em;
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.5;
    background-color: whitesmoke;
}

header {
    background-color: rgba(36, 36, 36, 0.678);
    width: 100%;
    color: #fff;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1rem;
}

header a {
    color: whitesmoke;
    margin-left: 10px;
    text-decoration: none;
}

header a:hover {
    color: #dea5ff;
    transition: 200ms;
}

header span a {
    color: whitesmoke;
    align-items: center;
    margin-left: 30px;
    text-decoration: none;
}

header span a:hover {
    color: #dea5ff;
    transition: 200ms;
}

main {
    background: whitesmoke;
    flex: 1;
}

button{
    font-size: 1.5rem;
    margin: 25px;
    background-color: purple;
    border: none;
    color: white;
    width: 8rem;
    height: 4rem;
    border-radius: 25px;
    box-shadow: 1em;
    cursor: pointer;
}

#winner{
    color: green;
}

#loser{
    color: red;
}

.results{
    font-weight: bold;
}