html, body, p{
    font-family:  Arial, Helvetica, sans-serif;
    margin: 0px;
    padding: 0px;
    font-size: 14px;
}

header{
    background-color: rgb(123, 185, 255);
    border-bottom: 3px solid#555555;
}

p{
    margin-left: 8px;
    margin-bottom: 8px;
}

a{
    color: rgb(0, 95, 219);
}

.title{
    text-align: center;
    font-size: 20px;
    font-weight:700;
    padding-top: 8px;
}

.sub_title{
    text-align: center;
    padding-bottom: 4px;
}

.center{
    text-align: center;
}

.topic{
    padding-left: 30px;
    margin-left: 0;
    margin-bottom: 10px;
    padding-top: 3px;
    padding-bottom: 3px;
    font-size: 20px;
    background-color: rgb(209, 225, 255);
}