a, span {
    padding-right: 30px;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

a:visited {
    color: blue;
}

.box {
    padding-bottom: 10px;
}

.box .title {
    font-weight: bold;
}

.box .tips {
    border: 1px solid black;
    padding: 10px;
}