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45个值得收藏的 CSS 形状（总结）_css 矩形大全

作者：羊村懒王 | 2024-02-16 21:51:07

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css 矩形大全

CSS能够生成各种形状。正方形和矩形很容易，因为它们是 web 的自然形状。添加宽度和高度，就得到了所需的精确大小的矩形。添加边框半径，你就可以把这个形状变成圆形，足够多的边框半径，你就可以把这些矩形变成圆形和椭圆形。

我们还可以使用 CSS 伪元素中的 ::before 和 ::after，这为我们提供了向原始元素添加另外两个形状的可能性。通过巧妙地使用定位、转换和许多其他技巧，我们可以只用一个 HTML 元素在 CSS 中创建许多形状。

虽然我们现在大都使用字体图标或者svg图片，似乎使用 CSS 来做图标意义不是很大，但怎么实现这些图标用到的一些技巧及思路是很值得我们的学习。

1.正方形

clipboard.png

  1. #square {
  2.   width: 100px;
  3.   height: 100px;
  4.   background: red;
  5. }

2.长方形

clipboard.png

  1. #rectangle {
  2.   width: 200px;
  3.   height: 100px;
  4.   background: red;
  5. }
  6.  
  7.

3.圆形

clipboard.png

  1. #circle {
  2.   width: 100px;
  3.   height: 100px;
  4.   background: red;
  5.   border-radius: 50%
  6. }

4.椭圆形

clipboard.png

  1. #oval {
  2.   width: 200px;
  3.   height: 100px;
  4.   background: red;
  5.   border-radius: 100px / 50px;
  6. }
  7.  
  8.

5.上三角

clipboard.png

  1. #triangle-up {
  2.   width: 0;
  3.   height: 0;
  4.   border-left: 50px solid transparent;
  5.   border-right: 50px solid transparent;
  6.   border-bottom: 100px solid red;
  7. }

6.下三角

clipboard.png

  1. #triangle-down {
  2.   width: 0;
  3.   height: 0;
  4.   border-left: 50px solid transparent;
  5.   border-right: 50px solid transparent;
  6.   border-top: 100px solid red;
  7. }
  8.

7.左三角

clipboard.png

  1. #triangle-left {
  2.   width: 0;
  3.   height: 0;
  4.   border-top: 50px solid transparent;
  5.   border-right: 100px solid red;
  6.   border-bottom: 50px solid transparent;
  7. }

8.右三角

clipboard.png

  1. #triangle-right {
  2.   width: 0;
  3.   height: 0;
  4.   border-top: 50px solid transparent;
  5.   border-left: 100px solid red;
  6.   border-bottom: 50px solid transparent;
  7. }

9.左上角

clipboard.png

#triangle-topleft {

  1.   width: 0;
  2.   height: 0;
  3.   border-top: 100px solid red;
  4.   border-right: 100px solid transparent;
  5. }

10.右上角

clipboard.png

  1. #triangle-topright {
  2.   width: 0;
  3.   height: 0;
  4.   border-top: 100px solid red;
  5.   border-left: 100px solid transparent;
  6. }

11.左下角

clipboard.png

  1. #triangle-bottomleft {
  2.   width: 0;
  3.   height: 0;
  4.   border-bottom: 100px solid red;
  5.   border-right: 100px solid transparent;
  6. }

12.右下角

clipboard.png

  1. #triangle-bottomright {
  2.   width: 0;
  3.   height: 0;
  4.   border-bottom: 100px solid red;
  5.   border-left: 100px solid transparent;
  6. }

13.箭头

clipboard.png

  1. #curvedarrow {
  2.   position: relative;
  3.   width: 0;
  4.   height: 0;
  5.   border-top: 9px solid transparent;
  6.   border-right: 9px solid red;
  7.   transform: rotate(10deg);
  8. }
  9. #curvedarrow:after {
  10.   content: "";
  11.   position: absolute;
  12.   border: 0 solid transparent;
  13.   border-top: 3px solid red;
  14.   border-radius: 20px 0 0 0;
  15.   top: -12px;
  16.   left: -9px;
  17.   width: 12px;
  18.   height: 12px;
  19.   transform: rotate(45deg);
  20. }

14.梯形

clipboard.png

  1. #trapezoid {
  2.   border-bottom: 100px solid red;
  3.   border-left: 25px solid transparent;
  4.   border-right: 25px solid transparent;
  5.   height: 0;
  6.   width: 100px;
  7. }

15.平行四边形

clipboard.png

  1. #parallelogram {
  2.   width: 150px;
  3.   height: 100px;
  4.   transform: skew(20deg);
  5.   background: red;
  6. }

16.星星 (6角)

clipboard.png

  1. #star-six {
  2.   width: 0;
  3.   height: 0;
  4.   border-left: 50px solid transparent;
  5.   border-right: 50px solid transparent;
  6.   border-bottom: 100px solid red;
  7.   position: relative;
  8. }
  9. #star-six:after {
  10.   width: 0;
  11.   height: 0;
  12.   border-left: 50px solid transparent;
  13.   border-right: 50px solid transparent;
  14.   border-top: 100px solid red;
  15.   position: absolute;
  16.   content: "";
  17.   top: 30px;
  18.   left: -50px;
  19. }

17.星星 (5角)

clipboard.png

  1. #star-five {
  2.   margin: 50px 0;
  3.   position: relative;
  4.   display: block;
  5.   color: red;
  6.   width: 0px;
  7.   height: 0px;
  8.   border-right: 100px solid transparent;
  9.   border-bottom: 70px solid red;
  10.   border-left: 100px solid transparent;
  11.   transform: rotate(35deg);
  12. }
  13. #star-five:before {
  14.   border-bottom: 80px solid red;
  15.   border-left: 30px solid transparent;
  16.   border-right: 30px solid transparent;
  17.   position: absolute;
  18.   height: 0;
  19.   width: 0;
  20.   top: -45px;
  21.   left: -65px;
  22.   display: block;
  23.   content: '';
  24.   transform: rotate(-35deg);
  25. }
  26. #star-five:after {
  27.   position: absolute;
  28.   display: block;
  29.   color: red;
  30.   top: 3px;
  31.   left: -105px;
  32.   width: 0px;
  33.   height: 0px;
  34.   border-right: 100px solid transparent;
  35.   border-bottom: 70px solid red;
  36.   border-left: 100px solid transparent;
  37.   transform: rotate(-70deg);
  38.   content: '';
  39. }
  40.

18.五边形

clipboard.png

  1. #pentagon {
  2.   position: relative;
  3.   width: 54px;
  4.   box-sizing: content-box;
  5.   border-width: 50px 18px 0;
  6.   border-style: solid;
  7.   border-color: red transparent;
  8. }
  9. #pentagon:before {
  10.   content: "";
  11.   position: absolute;
  12.   height: 0;
  13.   width: 0;
  14.   top: -85px;
  15.   left: -18px;
  16.   border-width: 0 45px 35px;
  17.   border-style: solid;
  18.   border-color: transparent transparent red;
  19. }

19.六边形

clipboard.png

  1. #hexagon {
  2.   width: 100px;
  3.   height: 55px;
  4.   background: red;
  5.   position: relative;
  6. }
  7. #hexagon:before {
  8.   content: "";
  9.   position: absolute;
  10.   top: -25px;
  11.   left: 0;
  12.   width: 0;
  13.   height: 0;
  14.   border-left: 50px solid transparent;
  15.   border-right: 50px solid transparent;
  16.   border-bottom: 25px solid red;
  17. }
  18. #hexagon:after {
  19.   content: "";
  20.   position: absolute;
  21.   bottom: -25px;
  22.   left: 0;
  23.   width: 0;
  24.   height: 0;
  25.   border-left: 50px solid transparent;
  26.   border-right: 50px solid transparent;
  27.   border-top: 25px solid red;
  28. }

20.八边形

clipboard.png

  1. #octagon {
  2.   width: 100px;
  3.   height: 100px;
  4.   background: red;
  5.   position: relative;
  6. }
  7. #octagon:before {
  8.   content: "";
  9.   width: 100px;
  10.   height: 0;
  11.   position: absolute;
  12.   top: 0;
  13.   left: 0;
  14.   border-bottom: 29px solid red;
  15.   border-left: 29px solid #eee;
  16.   border-right: 29px solid #eee;
  17. }
  18. #octagon:after {
  19.   content: "";
  20.   width: 100px;
  21.   height: 0;
  22.   position: absolute;
  23.   bottom: 0;
  24.   left: 0;
  25.   border-top: 29px solid red;
  26.   border-left: 29px solid #eee;
  27.   border-right: 29px solid #eee;
  28. }

21.爱心

clipboard.png

  1. #heart {
  2.   position: relative;
  3.   width: 100px;
  4.   height: 90px;
  5. }
  6. #heart:before,
  7. #heart:after {
  8.   position: absolute;
  9.   content: "";
  10.   left: 50px;
  11.   top: 0;
  12.   width: 50px;
  13.   height: 80px;
  14.   background: red;
  15.   border-radius: 50px 50px 0 0;
  16.   transform: rotate(-45deg);
  17.   transform-origin: 0 100%;
  18. }
  19. #heart:after {
  20.   left: 0;
  21.   transform: rotate(45deg);
  22.   transform-origin: 100% 100%;
  23. }
  24.

22.无穷大

clipboard.png

  1. #infinity {
  2.   position: relative;
  3.   width: 212px;
  4.   height: 100px;
  5.   box-sizing: content-box;
  6. }
  7. #infinity:before,
  8. #infinity:after {
  9.   content: "";
  10.   box-sizing: content-box;
  11.   position: absolute;
  12.   top: 0;
  13.   left: 0;
  14.   width: 60px;
  15.   height: 60px;
  16.   border: 20px solid red;
  17.   border-radius: 50px 50px 0 50px;
  18.   transform: rotate(-45deg);
  19. }
  20. #infinity:after {
  21.   left: auto;
  22.   right: 0;
  23.   border-radius: 50px 50px 50px 0;
  24.   transform: rotate(45deg);
  25. }

23.菱形

clipboard.png

  1. #diamond {
  2.   width: 0;
  3.   height: 0;
  4.   border: 50px solid transparent;
  5.   border-bottom-color: red;
  6.   position: relative;
  7.   top: -50px;
  8. }
  9. #diamond:after {
  10.   content: '';
  11.   position: absolute;
  12.   left: -50px;
  13.   top: 50px;
  14.   width: 0;
  15.   height: 0;
  16.   border: 50px solid transparent;
  17.   border-top-color: red;
  18. }

24.钻石

clipboard.png

  1. #diamond-shield {
  2.   width: 0;
  3.   height: 0;
  4.   border: 50px solid transparent;
  5.   border-bottom: 20px solid red;
  6.   position: relative;
  7.   top: -50px;
  8. }
  9. #diamond-shield:after {
  10.   content: '';
  11.   position: absolute;
  12.   left: -50px;
  13.   top: 20px;
  14.   width: 0;
  15.   height: 0;
  16.   border: 50px solid transparent;
  17.   border-top: 70px solid red;
  18. }

25.钻戒

clipboard.png

  1. #diamond-narrow {
  2.   width: 0;
  3.   height: 0;
  4.   border: 50px solid transparent;
  5.   border-bottom: 70px solid red;
  6.   position: relative;
  7.   top: -50px;
  8. }
  9. #diamond-narrow:after {
  10.   content: '';
  11.   position: absolute;
  12.   left: -50px;
  13.   top: 70px;
  14.   width: 0;
  15.   height: 0;
  16.   border: 50px solid transparent;
  17.   border-top: 70px solid red;
  18. }

26.钻石2

clipboard.png

  1. #cut-diamond {
  2.   border-style: solid;
  3.   border-color: transparent transparent red transparent;
  4.   border-width: 0 25px 25px 25px;
  5.   height: 0;
  6.   width: 50px;
  7.   box-sizing: content-box;
  8.   position: relative;
  9.   margin: 20px 0 50px 0;
  10. }
  11. #cut-diamond:after {
  12.   content: "";
  13.   position: absolute;
  14.   top: 25px;
  15.   left: -25px;
  16.   width: 0;
  17.   height: 0;
  18.   border-style: solid;
  19.   border-color: red transparent transparent transparent;
  20.   border-width: 70px 50px 0 50px;
  21. }

27.蛋蛋

clipboard.png

  1. #egg {
  2.   display: block;
  3.   width: 126px;
  4.   height: 180px;
  5.   background-color: red;
  6.   border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
  7. }

28.吃豆人

clipboard.png

  1. #pacman {
  2.   width: 0px;
  3.   height: 0px;
  4.   border-right: 60px solid transparent;
  5.   border-top: 60px solid red;
  6.   border-left: 60px solid red;
  7.   border-bottom: 60px solid red;
  8.   border-top-left-radius: 60px;
  9.   border-top-right-radius: 60px;
  10.   border-bottom-left-radius: 60px;
  11.   border-bottom-right-radius: 60px;
  12. }

29.对话泡泡

clipboard.png

  1. #talkbubble {
  2.   width: 120px;
  3.   height: 80px;
  4.   background: red;
  5.   position: relative;
  6.   -moz-border-radius: 10px;
  7.   -webkit-border-radius: 10px;
  8.   border-radius: 10px;
  9. }
  10. #talkbubble:before {
  11.   content: "";
  12.   position: absolute;
  13.   right: 100%;
  14.   top: 26px;
  15.   width: 0;
  16.   height: 0;
  17.   border-top: 13px solid transparent;
  18.   border-right: 26px solid red;
  19.   border-bottom: 13px solid transparent;
  20. }

30. 12点 爆发

clipboard.png

  1. #burst-12 {
  2.   background: red;
  3.   width: 80px;
  4.   height: 80px;
  5.   position: relative;
  6.   text-align: center;
  7. }
  8. #burst-12:before,
  9. #burst-12:after {
  10.   content: "";
  11.   position: absolute;
  12.   top: 0;
  13.   left: 0;
  14.   height: 80px;
  15.   width: 80px;
  16.   background: red;
  17. }
  18. #burst-12:before {
  19.   transform: rotate(30deg);
  20. }
  21. #burst-12:after {
  22.   transform: rotate(60deg);
  23. }

31. 8点 爆发

clipboard.png

  1. #burst-8 {
  2.   background: red;
  3.   width: 80px;
  4.   height: 80px;
  5.   position: relative;
  6.   text-align: center;
  7.   transform: rotate(20deg);
  8. }
  9. #burst-8:before {
  10.   content: "";
  11.   position: absolute;
  12.   top: 0;
  13.   left: 0;
  14.   height: 80px;
  15.   width: 80px;
  16.   background: red;
  17.   transform: rotate(135deg);
  18. }

32.太极

clipboard.png

  1. #yin-yang {
  2.   width: 96px;
  3.   box-sizing: content-box;
  4.   height: 48px;
  5.   background: #eee;
  6.   border-color: red;
  7.   border-style: solid;
  8.   border-width: 2px 2px 50px 2px;
  9.   border-radius: 100%;
  10.   position: relative;
  11. }
  12. #yin-yang:before {
  13.   content: "";
  14.   position: absolute;
  15.   top: 50%;
  16.   left: 0;
  17.   background: #eee;
  18.   border: 18px solid red;
  19.   border-radius: 100%;
  20.   width: 12px;
  21.   height: 12px;
  22.   box-sizing: content-box;
  23. }
  24. #yin-yang:after {
  25.   content: "";
  26.   position: absolute;
  27.   top: 50%;
  28.   left: 50%;
  29.   background: red;
  30.   border: 18px solid #eee;
  31.   border-radius: 100%;
  32.   width: 12px;
  33.   height: 12px;
  34.   box-sizing: content-box;
  35. }

33.徽章丝带

clipboard.png

  1. #badge-ribbon {
  2.   position: relative;
  3.   background: red;
  4.   height: 100px;
  5.   width: 100px;
  6.   border-radius: 50px;
  7. }
  8. #badge-ribbon:before,
  9. #badge-ribbon:after {
  10.   content: '';
  11.   position: absolute;
  12.   border-bottom: 70px solid red;
  13.   border-left: 40px solid transparent;
  14.   border-right: 40px solid transparent;
  15.   top: 70px;
  16.   left: -10px;
  17.   transform: rotate(-140deg);
  18. }
  19. #badge-ribbon:after {
  20.   left: auto;
  21.   right: -10px;
  22.   transform: rotate(140deg);
  23. }

34.太空入侵者（电脑游戏名）

clipboard.png

  1.  
  2. #space-invader {
  3.   box-shadow: 0 0 0 1em red,
  4.   0 1em 0 1em red,
  5.   -2.5em 1.5em 0 .5em red,
  6.   2.5em 1.5em 0 .5em red,
  7.   -3em -3em 0 0 red,
  8.   3em -3em 0 0 red,
  9.   -2em -2em 0 0 red,
  10.   2em -2em 0 0 red,
  11.   -3em -1em 0 0 red,
  12.   -2em -1em 0 0 red,
  13.   2em -1em 0 0 red,
  14.   3em -1em 0 0 red,
  15.   -4em 0 0 0 red,
  16.   -3em 0 0 0 red,
  17.   3em 0 0 0 red,
  18.   4em 0 0 0 red,
  19.   -5em 1em 0 0 red,
  20.   -4em 1em 0 0 red,
  21.   4em 1em 0 0 red,
  22.   5em 1em 0 0 red,
  23.   -5em 2em 0 0 red,
  24.   5em 2em 0 0 red,
  25.   -5em 3em 0 0 red,
  26.   -3em 3em 0 0 red,
  27.   3em 3em 0 0 red,
  28.   5em 3em 0 0 red,
  29.   -2em 4em 0 0 red,
  30.   -1em 4em 0 0 red,
  31.   1em 4em 0 0 red,
  32.   2em 4em 0 0 red;
  33.   background: red;
  34.   width: 1em;
  35.   height: 1em;
  36.   overflow: hidden;
  37.   margin: 50px 0 70px 65px;
  38. }    
  39.

35.电视

clipboard.png

  1.  
  2. #tv {
  3.   position: relative;
  4.   width: 200px;
  5.   height: 150px;
  6.   margin: 20px 0;
  7.   background: red;
  8.   border-radius: 50% / 10%;
  9.   color: white;
  10.   text-align: center;
  11.   text-indent: .1em;
  12. }
  13. #tv:before {
  14.   content: '';
  15.   position: absolute;
  16.   top: 10%;
  17.   bottom: 10%;
  18.   right: -5%;
  19.   left: -5%;
  20.   background: inherit;
  21.   border-radius: 5% / 50%;
  22. }

36.雪佛龙

clipboard.png

  1. #chevron {
  2.   position: relative;
  3.   text-align: center;
  4.   padding: 12px;
  5.   margin-bottom: 6px;
  6.   height: 60px;
  7.   width: 200px;
  8. }
  9. #chevron:before {
  10.   content: '';
  11.   position: absolute;
  12.   top: 0;
  13.   left: 0;
  14.   height: 100%;
  15.   width: 51%;
  16.   background: red;
  17.   transform: skew(0deg, 6deg);
  18. }
  19. #chevron:after {
  20.   content: '';
  21.   position: absolute;
  22.   top: 0;
  23.   right: 0;
  24.   height: 100%;
  25.   width: 50%;
  26.   background: red;
  27.   transform: skew(0deg, -6deg);
  28. }

37.放大镜

clipboard.png

  1. #magnifying-glass {
  2.   font-size: 10em;
  3.   display: inline-block;
  4.   width: 0.4em;
  5.   box-sizing: content-box;
  6.   height: 0.4em;
  7.   border: 0.1em solid red;
  8.   position: relative;
  9.   border-radius: 0.35em;
  10. }
  11. #magnifying-glass:before {
  12.   content: "";
  13.   display: inline-block;
  14.   position: absolute;
  15.   right: -0.25em;
  16.   bottom: -0.1em;
  17.   border-width: 0;
  18.   background: red;
  19.   width: 0.35em;
  20.   height: 0.08em;
  21.   transform: rotate(45deg);
  22. }
  23.

38.Facebook图标

clipboard.png

  1. #facebook-icon {
  2.   background: red;
  3.   text-indent: -999em;
  4.   width: 100px;
  5.   height: 110px;
  6.   box-sizing: content-box;
  7.   border-radius: 5px;
  8.   position: relative;
  9.   overflow: hidden;
  10.   border: 15px solid red;
  11.   border-bottom: 0;
  12. }
  13. #facebook-icon:before {
  14.   content: "/20";
  15.   position: absolute;
  16.   background: red;
  17.   width: 40px;
  18.   height: 90px;
  19.   bottom: -30px;
  20.   right: -37px;
  21.   border: 20px solid #eee;
  22.   border-radius: 25px;
  23.   box-sizing: content-box;
  24. }
  25. #facebook-icon:after {
  26.   content: "/20";
  27.   position: absolute;
  28.   width: 55px;
  29.   top: 50px;
  30.   height: 20px;
  31.   background: #eee;
  32.   right: 5px;
  33.   box-sizing: content-box;
  34. }

39.月亮

clipboard.png

  1.  
  2. #moon {
  3.   width: 80px;
  4.   height: 80px;
  5.   border-radius: 50%;
  6.   box-shadow: 15px 15px 0 0 red;
  7. }

40.旗

clipboard.png

  1. #flag {
  2.   width: 110px;
  3.   height: 56px;
  4.   box-sizing: content-box;
  5.   padding-top: 15px;
  6.   position: relative;
  7.   background: red;
  8.   color: white;
  9.   font-size: 11px;
  10.   letter-spacing: 0.2em;
  11.   text-align: center;
  12.   text-transform: uppercase;
  13. }
  14. #flag:after {
  15.   content: "";
  16.   position: absolute;
  17.   left: 0;
  18.   bottom: 0;
  19.   width: 0;
  20.   height: 0;
  21.   border-bottom: 13px solid #eee;
  22.   border-left: 55px solid transparent;
  23.   border-right: 55px solid transparent;
  24. }

41.圆锥

clipboard.png

  1.  #cone {
  2.   width: 0;
  3.   height: 0;
  4.   border-left: 70px solid transparent;
  5.   border-right: 70px solid transparent;
  6.   border-top: 100px solid red;
  7.   border-radius: 50%;
  8. }

42.十字架

clipboard.png

  1. #cross {
  2.   background: red;
  3.   height: 100px;
  4.   position: relative;
  5.   width: 20px;
  6. }
  7. #cross:after {
  8.   background: red;
  9.   content: "";
  10.   height: 20px;
  11.   left: -40px;
  12.   position: absolute;
  13.   top: 40px;
  14.   width: 100px;
  15. }

43.根基

clipboard.png

  1.  #base {
  2.   background: red;
  3.   display: inline-block;
  4.   height: 55px;
  5.   margin-left: 20px;
  6.   margin-top: 55px;
  7.   position: relative;
  8.   width: 100px;
  9. }
  10. #base:before {
  11.   border-bottom: 35px solid red;
  12.   border-left: 50px solid transparent;
  13.   border-right: 50px solid transparent;
  14.   content: "";
  15.   height: 0;
  16.   left: 0;
  17.   position: absolute;
  18.   top: -35px;
  19.   width: 0;
  20. }

44.指示器

clipboard.png

  1. #pointer {
  2.   width: 200px;
  3.   height: 40px;
  4.   position: relative;
  5.   background: red;
  6. }
  7. #pointer:after {
  8.   content: "";
  9.   position: absolute;
  10.   left: 0;
  11.   bottom: 0;
  12.   width: 0;
  13.   height: 0;
  14.   border-left: 20px solid white;
  15.   border-top: 20px solid transparent;
  16.   border-bottom: 20px solid transparent;
  17. }
  18. #pointer:before {
  19.   content: "";
  20.   position: absolute;
  21.   right: -20px;
  22.   bottom: 0;
  23.   width: 0;
  24.   height: 0;
  25.   border-left: 20px solid red;
  26.   border-top: 20px solid transparent;
  27.   border-bottom: 20px solid transparent;
  28. }

45.锁

clipboard.png

  1. #lock {
  2.   font-size: 8px;
  3.   position: relative;
  4.   width: 18em;
  5.   height: 13em;
  6.   border-radius: 2em;
  7.   top: 10em;
  8.   box-sizing: border-box;
  9.   border: 3.5em solid red;
  10.   border-right-width: 7.5em;
  11.   border-left-width: 7.5em;
  12.   margin: 0 0 6rem 0;
  13. }
  14. #lock:before {
  15.   content: "";
  16.   box-sizing: border-box;
  17.   position: absolute;
  18.   border: 2.5em solid red;
  19.   width: 14em;
  20.   height: 12em;
  21.   left: 50%;
  22.   margin-left: -7em;
  23.   top: -12em;
  24.   border-top-left-radius: 7em;
  25.   border-top-right-radius: 7em;
  26. }
  27. #lock:after {
  28.   content: "";
  29.   box-sizing: border-box;
  30.   position: absolute;
  31.   border: 1em solid red;
  32.   width: 5em;
  33.   height: 8em;
  34.   border-radius: 2.5em;
  35.   left: 50%;
  36.   top: -1em;
  37.   margin-left: -2.5em;
  38. }
  39.

 

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