JS to achieve similar Sina Weibo homepage content Fade effect method

Source: Internet
Author: User

Point one:

1 2 3 4 5 if (list_li.length>=1) {List.insertbefore (li,list_li[0]);} else{List.appendchild (LI);}

Insert the new content from the front, and if there is no new content, insert the new content later.

Point two:

1 2 var height=li.offsetheight; li.style.height= ' 0 ';

Get the height of Li, then the height of Li is set to 0, because the height change is from 0 to the existing height.

Point three:

1 2 3 Startrun (li, "height", height,function () {Startrun (Li, "opacity", "100");})

First, high change, then transparency.

Finally, on the code:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30-31 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 The "the" is the same as the <! DOCTYPE html>
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