css, style, color, font-face, keyframes, font-family, font-size, font-weight, bold, normal, text-align, text-decoration, underline, none, text-shadow, width, height, line-height, max-width, min-width, max-height, min-height, padding, margin, margin-top, margin-right, margin-bottom, margin-left, repeat, center, left, right, middle, vertical, top, bottom, border, solid, double, dotted, background, delay, direction, duration, name, timing, function, attachment, clip, image, origin, position, relative, absolute, radius, flex, fixed, pack, box, sizing, rule, adjust, gradient, inline, outline, offset, rgba, overflow, hidden, resize, transform, property, wrap, float, list-style, display, block, z-index, transform, rotate, scale, skew, translate, matrix, transition, property, timing, animation, name, state, rgba, linear, radial, ordinal, flex, pack, lines, group, linear-gradient(to bottom, red, purple);, background-color: rgba(255, 0, 0, 0.5);, background-image: url("photo.jpg");, background-blend-mode: multiply;, linear-gradient(to bottom, red 100%, orange 50%, yellow 100%);, linear-gradient(45deg, red 100%, yellow 0%);, hover, opacity, charset, css, container, section.nth-child(odd){}, margin: 0 auto;, overflow: hidden;, float: left;, float: right;, #wrapper, .wrapper, .container, white-space, text-indent, nth-child,