<button class="button--angle">An angle button</button>

<hr>

<button class="button--angle">An angle button with a longer name</button>

/**
 * Button angle with NO pseudo-element
 */


.button--angle {
    --bg-color: lightseagreen;
    --bg-color-hover: steelblue;
    --angle-width: 2rem;
    --duration: 300ms;
    --easing: cubic-bezier(0.165, 0.840, 0.440, 1);
    --padding-x: 1rem;
    --padding-y: 1rem;
    
    background-color: var(--bg-color);
    clip-path: polygon(0% 0%, calc(100% - var(--angle-width)) 0%, 100% 50%, calc(100% - var(--angle-width)) 100%, 0% 100%);
    color: black;
    display: inline-block;
    padding: var(--padding-y) var(--padding-x);
    padding-right: calc(var(--angle-width) + var(--padding-x));
    transition: background-color var(--duration) var(--easing);
}

.button--angle:hover {
    background-color: var(--bg-color-hover);
    transition: background-color var(--duration) var(--easing);
}


/**
 * demo styles
 */

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: ghostwhite;
    font-family: system-ui, -apple-system, sans-serif;
    line-height: 1.5;
    max-width: 300px;
    padding: 1rem;
}

button {
    border: 0;
    cursor: pointer;
    font-family: system-ui, -apple-system, sans-serif;
    font-weight: 600;
    text-align: left;
}

hr {
    border: 0;
    margin: 2rem;
}