.zeffy-btn {
    background-color: #182D09;  /* dark green */
    color: white;
    border: none;
    border-radius: 10px;        /* rounded corners */
    padding: 15px 30px;         /* makes the button bigger */
    text-transform: uppercase;
    cursor: pointer;

    display: inline-flex;       /* keeps text centered inside button */
    justify-content: center;
    align-items: center;
    margin: 10px 0;             /* spacing from other elements */
    box-sizing: border-box;
}