a {
    font-weight: 100;
    font-family: monospace;
    color: black;
    text-decoration: none;
    border-width: 1px;
}

span {
    font-weight: 100;
    font-family: monospace;
    color: blue;
    text-decoration: none;
    border-width: 1px;
    border-style: solid;
    background-color: aqua;
    border-radius: 5px;
    padding: 5px;
    margin: 2px;
    line-height: 30px;
    white-space: nowrap;
}

html {
    font-size: 12px;
    font-weight: 100;
    font-family: monospace;
    background-color: #00f053;
}

body {
    background-color: #00f053;
    width: 800px;
}

h1 {
    font-size: 40px;
    text-decoration: underline;
    font-family: serif;
}

h2 {
    font-size: 20px;
    text-decoration: bold;
    font-family: sans-serif;
}

.headimg {
    float: inline-end;
    margin-right: 480px;
}