.category-button {
    background-color:white;
    color:black;
    padding:10px;
    padding-right:25px;
    text-decoration: none;;
    position: relative;
    display:inline-block;
    font-weight:bold;
    overflow: hidden;
}

.category-button::before {
    position: absolute;
    right:10px;
    content:"";
    width:6px;
    top:-5px;
    height:120%;
    transform: rotate(20deg);
}