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红心点赞效果的实现

红心点赞效果的实现

一、总结

一句话总结：

css的动画效果有时候也蛮好用的，比如红心的闪烁效果

 

1、css实现红心闪烁效果？

这个用css实现比用原生js实现方便太多了
.heart1{
    ...
    animation: test 1s linear 1;
    filter:drop-shadow(0px 0px 4px rgb(255,20,20));
}
@keyframes test{
    0%{
        transform: scale(0.8,0.8);
        opacity: 1;
    }
    25%{
        transform: scale(1,1);
        opacity: 0.8;
    }
    100%{
        transform: scale(0.8,0.8);
        opacity: 1;
    }
}

 

 

2、红心的外溅效果？

filter:drop-shadow(0px 0px 4px rgb(255,20,20));

 

3、js中addEventListener的使用？

document.getElementById("heart").addEventListener("click", function(){ });

 

4、原生js中修改css样式？

document.getElementById("heart").style.display = "block";

 

5、html字符集中还有蛮多的图案，比如红心？

稍微知道下就好：比如<span>&hearts;&#9829;</span>

 

6、html字符集（比如&#9829;的红心）如何修改大小？

通过font-size属性，因为本身就是字符

 

 

 

二、css画红心

1、效果图

 

 

 

 

 

2、代码

 1 <!DOCTYPE html>
 2 <html lang="en">
 3 <head>
 4     <meta charset="UTF-8">
 5     <title>微信点赞</title>
 6     <style>
 7         *{
 8             padding: 0;
 9             margin: 0;
10         }
11         .heart{
12             position:absolute;
13             left: 50%;
14             top:50%;
15             margin-left: -150px;
16             margin-top: -135px;
17             width: 300px;
18             height:270px;
19             background: transparent;
20             animation: test 1s linear 1;
21             filter:drop-shadow(0px 0px 4px rgb(192,192,192));
22         }
23         .heart1{
24             position:absolute;
25             left: 50%;
26             top:50%;
27             margin-left: -150px;
28             margin-top: -135px;
29             width: 300px;
30             height:270px;
31             background: transparent;
32             animation: test 1s linear 1;
33             filter:drop-shadow(0px 0px 4px rgb(255,20,20));
34         }
35         .heart:before,
36         .heart:after{
37             content: "";
38             position: absolute;
39             left: 150px;
40             width: 150px;
41             height: 240px;
42             background: rgb(192,192,192);
43             border-radius: 150px 150px 0 0;
44             transform:rotate(-45deg);
45             transform-origin: 0 100%;
46         }
47         .heart1:before,.heart1:after{
48             content: "";
49             position: absolute;
50             left: 150px;
51             width: 150px;
52             height: 240px;
53             background: rgb(255,0,0);
54             border-radius: 150px 150px 0 0;
55             transform:rotate(-45deg);
56             transform-origin: 0 100%;
57         }
58         .heart:after,.heart1:after{
59             left: 0;
60             transform:rotate(45deg);
61             transform-origin: 100% 100%;
62         }
63         @keyframes test{
64             0%{
65                 transform: scale(0.8,0.8);
66                 opacity: 1;
67             }
68             25%{
69                 transform: scale(1,1);
70                 opacity: 0.8;
71             }
72             100%{
73                 transform: scale(0.8,0.8);
74                 opacity: 1;
75             }
76         }
77     </style>
78 </head>
79 <body>
80 <div id="heart" class="heart" >
81 
82 </div>
83 <div id="heart1" class="heart1" style="display: none;">
84 
85 </div>
86 <script>
87     document.getElementById("heart").addEventListener("click", function()
88     {
89         document.getElementById("heart1").style.display = "block";
90         this.style.display = "none";
91     });
92     document.getElementById("heart1").addEventListener("click", function()
93     {
94         document.getElementById("heart").style.display = "block";
95         this.style.display = "none";
96     });
97 </script>
98 </body>
99 </html>

 

 

三、html字符集 红心

1、效果图

 

2、代码

 1 <!DOCTYPE html>
 2 <html lang="en">
 3 <head>
 4     <meta charset="UTF-8">
 5     <title>Document</title>
 6 </head>
 7 <style>
 8     span{color:#999;}
 9     p{color:#D00;}
10     .heart{
11         animation: test 1s linear 1;
12         filter:drop-shadow(0px 0px 4px rgb(192,192,192));
13     }
14     .heart1{
15         animation: test 1s linear 1;
16         filter:drop-shadow(0px 0px 4px rgb(255,20,20));
17     }
18     @keyframes test{
19         0%{
20             transform: scale(0.8,0.8);
21             opacity: 0.8;
22         }
23         100%{
24             transform: scale(1,1);
25             opacity: 1.0;
26         }
27     }
28 </style>
29 <body>
30     <span>
31         &hearts;&#9829;
32     </span>
33     <p>
34         &hearts;&#9829;
35     </p>
36 
37     <div style="position: relative;width: 500px;height: 500px;">
38         <div id="heart" class="heart" style="width: 500px;height: 500px;font-size: 200px;line-height:200px;color:#999;position: absolute;left: 30px;top: 30px;cursor: pointer;">
39             &hearts;
40         </div>
41         <div id="heart1" class="heart1" style="width: 500px;height: 500px;font-size: 200px;line-height:200px;color:#D00;position: absolute;left: 30px;top: 30px;display: none;cursor: pointer;">
42             &hearts;
43         </div>
44     </div>
45 
46     <script>
47         document.getElementById("heart").addEventListener("click", function()
48         {
49             document.getElementById("heart1").style.display = "block";
50             this.style.display = "none";
51         });
52         document.getElementById("heart1").addEventListener("click", function()
53         {
54             document.getElementById("heart").style.display = "block";
55             this.style.display = "none";
56         });
57     </script>
58 
59     
60 </body>
61 </html>

 

 

 

 
posted @ 2019-10-31 00:53  范仁义  阅读(1919)  评论(0)  编辑  收藏  举报