.field--name-field-attachments a {
    width: 100%;
    text-align: center;
    margin: 20px 0;
    font-size: 16px;
    font-size: 1rem;
    line-height: 1.5;
    padding: 8px 24px;
    padding: .5rem 1.5rem;
    display: inline-block;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol";
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    background-color: #00698f;
    border: 3px solid #00698f;
    cursor: pointer;
    vertical-align: middle;
    -webkit-transition: background 0.1s ease, border 0.1s ease, color 0.1s ease;
    transition: background 0.1s ease, border 0.1s ease, color 0.1s ease;
}

.field--name-field-attachments a:hover, .field--name-field-attachments a:focus {
    background-color: #313131;
    border-color: #313131;
    text-decoration: underline;
    color: #fff;
}

.field--name-field-attachments {
   margin-bottom: 1rem; 
}