button{
    outline: none;
    cursor: pointer;
    display: block;
    text-align: center;
    border: none;
    border-bottom: 1px solid #000;
    color: #000;
    background-color: transparent;
    font-family: serif;
    padding-left: .15em;
    padding-right: .15em;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: .4em;
    line-height: 2;
    transition: all .3s ease;
}

button:focus,
button:hover{
    padding-left: 1.5em;
    padding-right: 1.5em;
}