a.courseButton {
    color: #333;
    background-color: #fff;
    border: 0;
    font-size: 1.2em;
    font-weight: 400;
    margin: 2px 0px;
    padding: 0.4em 1em;
    display: inline-block;
    text-decoration: none;
    text-align: center;
    min-width: 40px;
    cursor: pointer;
    transition: background-color .3s, color .3s, border .3s;
    border-radius: 100px;
}

a.courseButton:hover {
    color: #fff;
    background-color: #000;
}

input.courseButton {
    color: #eee;
    background-color: #666;
    border: 0;
    font-size: 1.2em;
    font-weight: 400;
    margin: 2px 0px;
    padding: 0.4em 1em;
    display: inline-block;
    text-decoration: none;
    text-align: center;
    min-width: 40px;
    cursor: pointer;
    transition: background-color .3s, color .3s, border .3s;
    border-radius: 100px;
}

input.courseButton:hover {
    color: #fff;
    background-color: #000;
}

label {
    display: block;
    color: #444;
    margin: 10px 0px 6px 6px;
    font-size: 1.1em;
    text-align: left;
    font-weight: 400;
}

input[type="text"], input[type="date"] {
    font-size: 1.2em;
    border: 1px solid #ccc;
    background-color: #fff;
    padding-left: 6px;
    border-radius: 4px;
}


.invalid {
    padding: 2px 6px !important;
    border: 3px solid #e00 !important;
}