CSS3学习笔记（1）-淡入的文字_html/css_WEB-ITnose

下来看下我做的“淡入的文字”最终动态效果：

上面这个动画效果制作的过程是：

（1）先自定义一个透明度从0到1变化的动画，然后在animation中调用这个动画效果

（2）注意不同行文字出现的时间先后，这个通过animation中延时属性可以实现

（3）规定文字最终动态为动画的最终显示状态，否则文字显示完会自动消失，这个用animation-fill-mode可以实现

一、先来看看HTML中程序：

                                            
            
山一程，水一程，
            
身向榆关那畔行，
            
夜深千帐灯。
            
风一更，雪一更，
            
聒碎乡心梦不成，
            
故园无此声。
        
    

上面这段程序主要是先把文字呈现出来，我随便找了一首诗啦~~~~~大家不要去猜它的意思QAQ

二、看看CSS样式（主要是CSS3）

.fade-in-words{    width: 200px;    margin: 0 auto;    text-align: center;}/*自定义一个透明度从0到1的动画，它的名称是fade-in*/@keyframes fade-in{      0%{ opacity: 0;}    100%{opacity:1;}}@-webkit-keyframes fade-in{    0%{ opacity: 0;}    100%{opacity:1;}}@-ms-keyframes fade-in{    0%{ opacity: 0;}    100%{opacity:1;}}@-o-keyframes fade-in{    0%{ opacity: 0;}    100%{opacity:1;}}@-moz-keyframes fade-in{    0%{ opacity: 0;}    100%{opacity:1;}}.first-words{     opacity: 0;      /*实先规定文字的状态是不显示的*/    animation: fade-in 4s ease 0s 1;    /*调用名称为fade-in的动画，全程动画显示时间4S，进入方式为ease，延时0S进入，播放次数1次*/    -webkit-animation: fade-in 4s ease 0s 1;    -moz-animation: fade-in 4s ease 0s 1;    -o-animation: fade-in 4s ease 0s 1;    -ms-animation: fade-in 4s ease 0s 1;        /*规定动画的最后状态为结束状态*/    animation-fill-mode:forwards;    -webkit-animation-fill-mode: forwards;        -o-animation-fill-mode: forwards;       -ms-animation-fill-mode: forwards;         -moz-animation-fill-mode: forwards; }.second-words{     opacity: 0;        animation: fade-in 4s ease 2s 1;    -webkit-animation: fade-in 4s ease 2s 1;    -moz-animation: fade-in 4s ease 2s 1;    -o-animation: fade-in 4s ease 2s 1;    -ms-animation: fade-in 4s ease 2s 1;        /*规定动画的最后状态为结束状态*/    animation-fill-mode:forwards;    -webkit-animation-fill-mode: forwards;        -o-animation-fill-mode: forwards;       -ms-animation-fill-mode: forwards;         -moz-animation-fill-mode: forwards; }.third-words{     opacity: 0;        animation: fade-in 4s ease 4s 1;    -webkit-animation: fade-in 4s ease 4s 1;    -moz-animation: fade-in 4s ease 4s 1;    -o-animation: fade-in 4s ease 4s 1;    -ms-animation: fade-in 4s ease 4s 1;        /*规定动画的最后状态为结束状态*/    animation-fill-mode:forwards;    -webkit-animation-fill-mode: forwards;        -o-animation-fill-mode: forwards;       -ms-animation-fill-mode: forwards;         -moz-animation-fill-mode: forwards; }.four-words{     opacity: 0;        animation: fade-in 4s ease 6s 1;    -webkit-animation: fade-in 4s ease 6s 1;    -moz-animation: fade-in 4s ease 6s 1;    -o-animation: fade-in 4s ease 6s 1;    -ms-animation: fade-in 4s ease 6s 1;        /*规定动画的最后状态为结束状态*/    animation-fill-mode:forwards;    -webkit-animation-fill-mode: forwards;        -o-animation-fill-mode: forwards;       -ms-animation-fill-mode: forwards;         -moz-animation-fill-mode: forwards; }.five-words{     opacity: 0;        animation: fade-in 4s ease 8s 1;    -webkit-animation: fade-in 4s ease 8s 1;    -moz-animation: fade-in 4s ease 8s 1;    -o-animation: fade-in 4s ease 8s 1;    -ms-animation: fade-in 4s ease 8s 1;        /*规定动画的最后状态为结束状态*/    animation-fill-mode:forwards;    -webkit-animation-fill-mode: forwards;        -o-animation-fill-mode: forwards;       -ms-animation-fill-mode: forwards;         -moz-animation-fill-mode: forwards; }.six-words{     opacity: 0;        animation: fade-in 4s ease 10s 1;    -webkit-animation: fade-in 4s ease 10s 1;    -moz-animation: fade-in 4s ease 10s 1;    -o-animation: fade-in 4s ease 10s 1;    -ms-animation: fade-in 4s ease 10s 1;        /*规定动画的最后状态为结束状态*/    animation-fill-mode:forwards;    -webkit-animation-fill-mode: forwards;        -o-animation-fill-mode: forwards;       -ms-animation-fill-mode: forwards;         -moz-animation-fill-mode: forwards; }

上面的程序我在注释里面都写得很清楚，感兴趣的可以看我写的注释，我觉得比较简单，没有难度，但是需要注意浏览器前缀的添加，否则你懂得~~~~