CSS3动画垂直

Question

我想使用这段代码，但我希望动画垂直。

header {
    width: 100%;
    height: 150px;
    background-image: url(http://www.scottishheritageusa.org/imgs/header_separator.png); //replace with your image
    background-position: 0px;
    background-repeat: repeat-x;
    -webkit-animation: myanim 5s infinite linear;
       -moz-animation: myanim 5s infinite linear;
         -o-animation: myanim 5s infinite linear;
            animation: myanim 5s infinite linear;
}

@-webkit-keyframes myanim {
    0%   { background-position: 0px; }
    100% { background-position: 100px; } /* set this to the width of the image */
}
@-moz-keyframes myanim {
    0%   { background-position: 0px; }
    100% { background-position: 100px; } /* set this to the width of the image */
}
@-o-keyframes myanim {
    0%   { background-position: 0px; }
    100% { background-position: 100px; } /* set this to the width of the image */
}
@keyframes myanim {
    0%   { background-position: 0px; }
    100% { background-position: 100px; } /* set this to the width of the image */
}

我在这里找到了这段代码： http://jsfiddle.net/e3WLD/3/

感谢帮助

Answer 1

背景位置接受2参数：

• 水平定位的第一个
• 和第二个用于垂直定位

更多信息在w3schools上的背景位置

所以通过将第二个参数添加到您可以的背景位置属性 垂直向背景设置动画。

我编辑了你的 jsfiddle

到这个：

header {
width: 100%;
height: 131px;
background-image: url(http://www.scottishheritageusa.org/imgs/header_separator.png);
background-position: 0px 0px;
background-repeat: repeat-y;
-webkit-animation: myanim 5s infinite linear;
   -moz-animation: myanim 5s infinite linear;
     -o-animation: myanim 5s infinite linear;
        animation: myanim 5s infinite linear;
}

@-webkit-keyframes myanim {
  0%   { background-position: 0px; }
  100% { background-position: 0px 1000px; } /* set this to the width of the image */
}
@-moz-keyframes myanim {
  0%   { background-position: 0px; }
  100% { background-position: 0px 1000px; } /* set this to the width of the image */
}
@-o-keyframes myanim {
  0%   { background-position: 0px; }
  100% { background-position: 1000px; } /* set this to the width of the image */
}
@keyframes myanim {
  0%   { background-position: 0px; }
  100% { background-position: 0px 1000px; } /* set this to the width of the image */
}

.

Answer 2

我能够通过将元素改变为90度来进行垂直。

transform: rotate(90deg);
-webkit-transform: rotate(90deg);

.

工作小提琴

Answer 3

您只是设置和动画背景位置值，因此它假定它将引用到第一个（x-position）和其他默认值为auto（我认为）。

试试这个

** jsfiddle demo **

css

header {
    width: 100%;
    height: 131px;
    background-image: url(http://www.scottishheritageusa.org/imgs/header_separator.png);
    background-position: 0px 0px; /* note */
    background-repeat: repeat-x;
    -webkit-animation: myanim 5s infinite linear;
       -moz-animation: myanim 5s infinite linear;
         -o-animation: myanim 5s infinite linear;
            animation: myanim 5s infinite linear;
}

@-webkit-keyframes myanim {
  0%   { background-position: 0px 0px; }
  100% { background-position: 0px 1000px; } 
}
@-moz-keyframes myanim 
{  0%   { background-position: 0px 0px; }
  100% { background-position: 0px 100px; } 
}
@-o-keyframes myanim {
  0%   { background-position: 0px 0px; }
  100% { background-position: 0px 100px; } 
}
@keyframes myanim {
  0%   { background-position: 0px 0px; }
  100% { background-position: 0px 100px; } 
}

.

Answer 4

如果你想将其设置为垂直旋转，如下所示： http://jsfiddle.net/jme11/AYKC2/

然后你需要将重复设置为 repeat-y 并更改背景位置以匹配元素的高度：

@keyframes myanim {
  0%   { background-position: 0px 0px; }
  100% { background-position: 0px 131px; } /* set this to the height of the image */
}