button{
    outline: none;
    position: relative;
    cursor: pointer;
    display: block;
    text-align: center;
    border: 6px double #ffd500;
    border-radius: 60px;
    background: transparent;
    color: #ffd500;
    padding: .75em 2em;
    font-family: monospace;
    font-size: 18px;
    line-height: 1;
    letter-spacing: .3em;
    text-transform: uppercase;
    transition: all .2s ease;
}

button:focus,
button:hover{
    background-color: rgba(255, 213, 0, 0.5);
    color: #252b69;
}