button[disabled], input[type="submit"][disabled] {
    opacity: 0.2;
}

.btn-blue, .btn-secondary{
    background-color: #0e9bcd;
    color: white;
}

.btn-blue:hover, .btn-secondary:hover, .btn-blue:focus, .btn-secondary:focus{
    color: white;
}

.btn-blue:hover:not(.disabled), .btn-secondary:hover:not(.disabled){
    transition: background-color 0.2s ease;
    background-color: rgba(14, 155, 205, 0.8);
}

.btn-plus{
    font-size: 28px;
    text-decoration: none;
    position: relative;
    top: -3px;
    display: inline-block;
    float: left;
    width: 22px;
    margin-right: 8px;
}