1. 正方形
#square {
width: 100px; height: 100px;
background: red;
}
2. 长方形
#rectangle {
width: 200px; height: 100px;
background: red;
}
3. 正圆
#circle {
width: 100px; height: 100px;
background: red;
border-radius: 50%
}
4. 椭圆
#oval {
width: 200px; height: 100px;
background: red;
border-radius: 50%;
}
5. 向上三角
#triangle-up {
width: 0;
border-left: 50px solid transparent;
border-right: 50px solid transparent;
border-bottom: 100px solid red;
}
6. 向下三角
#triangle-down {
width: 0;
border-left: 50px solid transparent;
border-right: 50px solid transparent;
border-top: 100px solid red;
}
7. 方向朝左的三角
#triangle-left {
width: 0;
border-top: 50px solid transparent;
border-right: 100px solid red;
border-bottom: 50px solid transparent;
}
8. 方向朝右的三角
#triangle-right {
width: 0;
border-top: 50px solid transparent;
border-left: 100px solid red;
border-bottom: 50px solid transparent;
}
9. 左上三角
#triangle-topleft {
width: 0;
border-top: 100px solid red;
border-right: 100px solid transparent;
}
也可以使用一个45°的斜向线性渐变实现，不过兼容性没有使用border实现好。
10. 右上三角
#triangle-topright {
width: 0;
border-top: 100px solid red;
border-left: 100px solid transparent;
}
也可以使用一个45°的斜向线性渐变实现，不过兼容性没有使用border实现好。
11. 左下角三角图形
#triangle-bottomleft {
width: 0;
height: 0;
border-bottom: 100px solid red;
border-right: 100px solid transparent;
}
也可以使用渐变绘制。
12. 右下角三角图形
效果如下：
#triangle-bottomright {
width: 0;
height: 0;
border-bottom: 100px solid red;
border-left: 100px solid transparent;
}
也可以使用渐变绘制。
13. 弧形尾箭头
#curvedarrow {
position: relative;
width: 0;
border-top: 90px solid transparent;
border-right: 90px solid red;
transform: rotate(10deg) translateX(100%);
}
#curvedarrow:after {
content: "";
position: absolute;
border: 0 solid transparent;
border-top: 30px solid red;
border-radius: 200px 0 0 0;
top: -120px; left: -90px;
width: 120px; height: 120px;
transform: rotate(45deg);
}
实际使用用不到这么大的图形，只要把CSS中所有的数值（不包括旋转）全部都缩小10倍就好了。
14. 梯形
#trapezoid {
border-bottom: 100px solid red;
border-left: 25px solid transparent;
border-right: 25px solid transparent;
width: 100px;
}
15. 等边四边形
可以借助transform属性的skew斜切实现：
#parallelogram {
width: 150px;
height: 100px;
transform: skew(20deg);
background: red;
}
16. 六角星
#star-six {
width: 0;
border-left: 50px solid transparent;
border-right: 50px solid transparent;
border-bottom: 100px solid red;
position: relative;
}
#star-six:after {
border-left: 50px solid transparent;
border-right: 50px solid transparent;
border-top: 100px solid red;
position: absolute;
content: "";
top: 30px; left: -50px;
}
17. 五角星
五角星实现难度要比六角形大得多
#star-five {
margin: 50px 0;
position: relative;
color: red;
width: 0px;
border-right: 100px solid transparent;
border-bottom: 70px solid red;
border-left: 100px solid transparent;
transform: rotate(35deg);
}
#star-five:before {
border-bottom: 80px solid red;
border-left: 30px solid transparent;
border-right: 30px solid transparent;
position: absolute;
top: -45px; left: -65px;
content: '';
transform: rotate(-35deg);
}
#star-five:after {
position: absolute;
color: red;
top: 3px; left: -105px;
border-right: 100px solid transparent;
border-bottom: 70px solid red;
border-left: 100px solid transparent;
transform: rotate(-70deg);
content: '';
}
18. 多边形-五边形
#pentagon {
position: relative;
width: 54px;
box-sizing: content-box;
border-width: 50px 18px 0;
border-style: solid;
border-color: red transparent;
}
#pentagon:before {
content: "";
position: absolute;
top: -85px; left: -18px;
border-width: 0 45px 35px;
border-style: solid;
border-color: transparent transparent red;
}
当然，最容易理解的实现方法是使用clip-path。
19. 多边形-六边形
#hexagon {
width: 100px; height: 55px;
background: red;
position: relative;
}
#hexagon:before {
content: "";
position: absolute;
top: -25px; left: 0;
border-left: 50px solid transparent;
border-right: 50px solid transparent;
border-bottom: 25px solid red;
}
#hexagon:after {
content: "";
position: absolute;
bottom: -25px; left: 0;
border-left: 50px solid transparent;
border-right: 50px solid transparent;
border-top: 25px solid red;
}
20. 多边形-八边形
#octagon {
width: 100px;
height: 100px;
background: red;
position: relative;
}
#octagon:before {
content: "";
width: 100px;
position: absolute;
top: 0; left: 0;
border-bottom: 29px solid red;
border-left: 29px solid #fff;
border-right: 29px solid #fff;
box-sizing: border-box;
}
#octagon:after {
content: "";
width: 100px;
position: absolute;
bottom: 0; left: 0;
border-top: 29px solid red;
border-left: 29px solid #fff;
border-right: 29px solid #fff;
box-sizing: border-box;
}
21. 爱心❥
#heart {
position: relative;
width: 100px; height: 90px;
}
#heart:before,
#heart:after {
position: absolute;
content: "";
left: 50px; top: 0;
width: 50px; height: 80px;
background: red;
border-radius: 50px 50px 0 0;
transform: rotate(-45deg);
transform-origin: 0 100%;
}
#heart:after {
left: 0;
transform: rotate(45deg);
transform-origin: 100% 100%;
}
22. 无限
#infinity {
position: relative;
width: 212px; height: 100px;
box-sizing: content-box;
}
#infinity:before,
#infinity:after {
content: "";
box-sizing: content-box;
position: absolute;
top: 0; left: 0;
width: 60px; height: 60px;
border: 20px solid red;
border-radius: 50px 50px 0 50px;
transform: rotate(-45deg);
}
#infinity:after {
left: auto; right: 0;
border-radius: 50px 50px 50px 0;
transform: rotate(45deg);
}
23. 菱形方块
#diamond {
width: 0;
height: 0;
border: 50px solid transparent;
border-bottom-color: red;
position: relative;
top: -50px;
}
#diamond:after {
content: '';
position: absolute;
left: -50px;
top: 50px;
width: 0;
height: 0;
border: 50px solid transparent;
border-top-color: red;
}
24. 菱形盾构
#diamond-shield {
width: 0;
border: 50px solid transparent;
border-bottom: 20px solid red;
position: relative;
top: -50px;
}
#diamond-shield:after {
content: '';
position: absolute;
left: -50px; top: 20px;
border: 50px solid transparent;
border-top: 70px solid red;
}
25. 方块菱形-窄
#diamond-narrow {
width: 0;
border: 50px solid transparent;
border-bottom: 70px solid red;
position: relative;
top: -50px;
}
#diamond-narrow:after {
content: '';
position: absolute;
left: -50px; top: 70px;
border: 50px solid transparent;
border-top: 70px solid red;
}
26. 切割菱形-钻石般
直接写几行CSS送给女朋友就好了，可以省很多钱，开个玩笑。
#cut-diamond {
border-style: solid;
border-color: transparent transparent red transparent;
border-width: 0 25px 25px 25px;
width: 50px;
box-sizing: content-box;
position: relative;
margin: 20px 0 50px 0;
}
#cut-diamond:after {
content: "";
position: absolute;
top: 25px; left: -25px;
border-style: solid;
border-color: red transparent transparent transparent;
border-width: 70px 50px 0 50px;
}
27. 鸡蛋形状
实现也很简单，就一个border-radius就可以了
#egg {
display: block;
width: 126px;
height: 180px;
background-color: red;
border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
}
28. 吃豆人
#pacman {
width: 0px; height: 0px;
border-right: 60px solid transparent;
border-top: 60px solid red;
border-left: 60px solid red;
border-bottom: 60px solid red;
border-top-left-radius: 60px;
border-top-right-radius: 60px;
border-bottom-left-radius: 60px;
border-bottom-right-radius: 60px;
}
29. 带尖角的说话泡泡
#talkbubble {
width: 120px; height: 80px;
background: red;
position: relative;
border-radius: 10px;
}
#talkbubble:before {
content: "";
position: absolute;
right: 100%; top: 26px;
border-top: 13px solid transparent;
border-right: 26px solid red;
border-bottom: 13px solid transparent;
}
30. 十二星
#burst-12 {
background: red;
width: 80px;
height: 80px;
position: relative;
text-align: center;
}
#burst-12:before,
#burst-12:after {
content: "";
position: absolute;
top: 0;
left: 0;
height: 80px;
width: 80px;
background: red;
}
#burst-12:before {
transform: rotate(30deg);
}
#burst-12:after {
transform: rotate(60deg);
}
31. 八角形
#burst-8 {
background: red;
width: 80px; height: 80px;
position: relative;
text-align: center;
transform: rotate(20deg);
}
#burst-8:before {
content: "";
position: absolute;
top: 0; left: 0;
height: 80px; width: 80px;
background: red;
transform: rotate(135deg);
}
32. 阴阳八卦
#yin-yang {
width: 96px; height: 48px;
background: #eee;
border-color: red;
border-style: solid;
border-width: 2px 2px 50px 2px;
border-radius: 100%;
position: relative;
}
#yin-yang:before {
content: "";
position: absolute;
top: 50%; left: 0;
background: #fff;
border: 18px solid red;
border-radius: 100%;
width: 12px; height: 12px;
}
#yin-yang:after {
content: "";
position: absolute;
top: 50%;
left: 50%;
background: red;
border: 18px solid #eee;
border-radius: 100%;
width: 12px;
height: 12px;
}
33. 徽章缎带
#badge-ribbon {
position: relative;
background: red;
height: 100px; width: 100px;
border-radius: 50px;
}
#badge-ribbon::before,
#badge-ribbon::after {
content: '';
position: absolute;
border-bottom: 70px solid red;
border-left: 40px solid transparent;
border-right: 40px solid transparent;
top: 70px; left: -10px;
transform: rotate(-140deg);
}
#badge-ribbon::after {
left: auto;
right: -10px;
transform: rotate(140deg);
}
34. bilibili电视机
#tv {
position: relative;
width: 200px; height: 150px;
margin: 20px 0;
background: red;
border-radius: 50% / 10%;
color: white;
text-align: center;
text-indent: .1em;
}
#tv:before {
content: '';
position: absolute;
top: 10%; bottom: 10%; right: -5%; left: -5%;
background: inherit;
border-radius: 5% / 50%;
}
35. V形线条
#chevron {
position: relative;
text-align: center;
padding: 12px;
margin-bottom: 6px;
height: 60px; width: 200px;
}
#chevron:before {
content: '';
position: absolute;
top: 0; left: 0;
height: 100%; width: 51%;
background: red;
transform: skew(0deg, 6deg);
}
#chevron:after {
content: '';
position: absolute;
top: 0; right: 0;
height: 100%; width: 50%;
background: red;
transform: skew(0deg, -6deg);
}
36. 放大镜
#magnifying-glass {
font-size: 10em;
display: inline-block;
width: 0.4em; height: 0.4em;
border: 0.1em solid red;
position: relative;
border-radius: 0.35em;
}
#magnifying-glass:before {
content: "";
display: inline-block;
position: absolute;
right: -0.25em; bottom: -0.1em;
border-width: 0;
background: red;
width: 0.35em; height: 0.08em;
transform: rotate(45deg);
}
这个实现很不错，单位是em，实用性就很强。
37. 月儿弯弯
#moon {
width: 80px; height: 80px;
border-radius: 50%;
box-shadow: 15px 15px 0 0 red;
}
38. 旗帜
#flag {
width: 110px; height: 56px;
padding-top: 15px;
position: relative;
background: red;
}
#flag:after {
content: "";
position: absolute;
left: 0; bottom: 0;
border-bottom: 13px solid #fff;
border-left: 55px solid transparent;
border-right: 55px solid transparent;
}
39. 圆锥体
依然是活用圆角border-radius属性：
#cone {
width: 0; height: 0;
border-left: 70px solid transparent;
border-right: 70px solid transparent;
border-top: 100px solid red;
border-radius: 50%;
}
40. 十字架
可以作为添加按钮，或者添加图标。
#cross {
background: red;
width: 20px; height: 100px;
position: relative;
}
#cross:after {
background: red;
content: "";
width: 100px; height: 20px;
position: absolute;
left: -40px; top: 40px;
}
41. 棒球踏板形状
#base {
background: red;
display: inline-block;
height: 55px; width: 100px;
margin-left: 20px;
margin-top: 55px;
position: relative;
}
#base:before {
border-bottom: 35px solid red;
border-left: 50px solid transparent;
border-right: 50px solid transparent;
content: "";
left: 0; top: -35px;
position: absolute;
}
42. 长长的指向图形
#pointer {
width: 200px; height: 40px;
position: relative;
background: red;
}
#pointer:after {
content: "";
position: absolute;
left: 0; bottom: 0;
border-left: 20px solid white;
border-top: 20px solid transparent;
border-bottom: 20px solid transparent;
}
#pointer:before {
content: "";
position: absolute;
right: -20px; bottom: 0;
border-left: 20px solid red;
border-top: 20px solid transparent;
border-bottom: 20px solid transparent;
}
43. 锁
#lock {
font-size: 8px;
position: relative;
width: 18em; height: 13em;
border-radius: 2em;
top: 10em;
box-sizing: border-box;
border: 3.5em solid red;
border-right-width: 7.5em;
border-left-width: 7.5em;
margin: 0 0 6rem 0;
}
#lock:before {
content: "";
box-sizing: border-box;
position: absolute;
border: 2.5em solid red;
width: 14em; height: 12em;
left: 50%;
margin-left: -7em; top: -12em;
border-top-left-radius: 7em;
border-top-right-radius: 7em;
}
#lock:after {
content: "";
box-sizing: border-box;
position: absolute;
border: 1em solid red;
width: 5em; height: 8em;
border-radius: 2.5em;
left: 50%; top: -1em;
margin-left: -2.5em;
}