.std-btn{border:none;background-color:var(--accent-color);color:var(--contrast-accent-color);padding:1em;transition:filter ease-in-out 100ms;border-radius:.5em;cursor:pointer}.std-btn:disabled{opacity:60%;cursor:not-allowed}.std-btn:hover:not(:disabled){filter:brightness(120%)}.std-centering{display:flex;justify-content:center;align-items:center}.image-wrapper img,img.std-img{max-width:var(--max,none);max-height:var(--max,none)}