css3新特性学习摘要

1.背景(background)添加多个图片,用逗号分隔即可

  div{background:url(xxx) no-repeat left top, url(yyy) no-repeat right top}

  麻烦的是,如果用重复(repeat, repeat-x, repeat-y)的话,图片会相互覆盖,不会用此来实现背景叠加效果不错

2.过度效果(transition)

  div{
    transition-proerty: width,color,xxx等或者all;
    transition-duration: 时长s;
    transition-timing-function: linear|ease|ease-in|ease-out|ease-in-out|cubic-bezier(n,n,n,n)
    transition-delay:开始前的延时s;
  }

  在定义好后任意时刻,针对指定属性的变化,都为有过度的效果,如:

  div:hover{width:100px}

3.动画(animation)

  div{
    animation-name:mymove;
    animation-duration: 5s;
    animation-timing-function:linear|ease|ease-in|ease-out|ease-in-out|cubic-bezier(n,n,n,n)
    animation-delay:2s;
    animation-iteration-count:n|infinite;
    animation-direction:normal|alternate;
    animation-play-state:running|paused;
    animation-fill-mode:none|forwards|backwards|both;
  }

  @keyframes mymove{
    from {left:0px;}
    50% {background:blue}
    to {left:200px;}
  }

  实现动画停留在最后状态的方法:

  a.把样式设置最终的效果,animation-iteration-count设为1
  b.直接把animation-fill-mode设为forwards 

    

posted on 2015-04-14 17:05  Freewing  阅读(197)  评论(0编辑  收藏  举报