1, background-position: (picture positioning)
##Three ways to write:
1): According to the % ratio, the upper left corner is the smallest (0%, 0%), the lower right corner is the largest (100%, %100);2): (x, y) the upper left corner is the smallest (0, 0), the right corner is the smallest The largest lower corner (max, max);
3) top, center, left, right, bottom;
2, background-clip:
1, including the value of that part: border; padding; content;3, background-origin:
1, from That part of the value starts: border; padding; con tent;Four, whether the background image is fixed or scrolls with the rest of the page.
1, scroll: scrolls with the rest of the page2, fixed: fixed at a certain position in the window.
Five, gradient:
1, linear gradient: linear-gradient:1) If it is an angle: angle, transition color ;
2) If it is top. . . , add to before the direction, and transition color after;
2, radial gradient: radial-gradient:
1) The default is the center point gradient;
2) [size at left top]: where size is the gradient radius.
2) Repeat the radial gradient: reoeating-radial-gradient: The format is the same as the radial gradient.