# CSS Unit

# CSS length unit

px 、wx are supported as length units. For styles that should not be affected by screen width and viewPortWidth, please use wx as unit.

# CSS number units

CSS number unit is a pure number without px, styles like opacity，lines，flex only accept number unit, you can find detail in common-style.

# CSS color unit

The supported color format is listed below:

• RGB, e.g. rgb(250, 0, 0)
• RGBA, e.g. rgba(255, 0, 0, 0.5)
• Hexadecimal color e.g. #ff0000 or #f00
• Color keywords

.classA {
  /* 3-chars hex */
  color: #0f0;
  /* 6-chars hex */
  color: #00ff00;
  /* rgba */
  color: rgb(255, 0, 0);
  /* rgba */
  color: rgba(255, 0, 0, 0.5);
  /* transparent */
  color: transparent;
  /* Basic color keywords */
  color: orange;
  /* Extended color keywords */
  color: darkgray;
}

# CSS color keywords