/* Keyword values */
background-color: gainsboro;
background-color: lightcoral;
/* Hexadecimal value */
background-color: #0000ff; /* blue opaque */
background-color: #00f; /* blue opaque shorthand */
background-color: #0000ff00; /* blue transparent */
background-color: #00f0; /* blue transparent shorthand */
background-color: #0000ffff; /* blue opaque */
background-color: #00ff; /* Fully opaque shorthand */
/* RGB value */
background-color: rgb(0, 0, 255); /* blue opaque */
background-color: rgba(0, 0, 255, 0.5); /* 50% transparent */
/* HSL value */
background-color: hsl(67, 100%, 50%); /* yellow opaque */
background-color: hsla(67, 100%, 50%, 0.75); /* 75% transparent */
/* Special keyword values */
background-color: currentcolor;
background-color: transparent;
/* Global values */
background-color: inherit;
background-color: initial;
background-color: unset;