body {  background-color: #000;}.fa {  border: 1px solid #fff;  color: yellowgreen;  padding: 10px;  margin: 10px;}.fa>div {  width: 110px;  height: 110px;  background-color: yellowgreen;  margin: 20px auto;}.polygon1 {  clip-path: polygon(50% 0px, 100% 100%, 0px 100%)}.polygon2 {  clip-path: polygon(0px 50%, 50% 0, 100% 50%, 50% 100%)}.polygon3 {  clip-path: polygon(0% 60%, 20% 0%, 60% 0%, 40% 60%)}

<div class="fa">  <p>polygon</p>  <p>值為多個坐標點組成，坐標第一個值是x方向，第二個值是y方向。</p>  <p>左上角為原點，右下角是(100%,100%)的點。</p>  <div class="polygon1"></div>  <div class="polygon2"></div>  <div class="polygon3"></div></div>

body {  background-color: #000;}.fa {  border: 1px solid #fff;  color: yellowgreen;  padding: 10px;  margin: 10px;}.fa>div {  width: 110px;  height: 110px;  background-color: yellowgreen;  margin: 20px auto;}.circle1 {  clip-path: circle(50% at 50% 50%)}.circle2 {  clip-path: circle(70% at 50% 50%)}.circle3 {  clip-path: circle(30% at 10% 10%)}

<div class="fa">  <p>circle</p>  <p>值為一個坐標點和半徑組成。</p>  <p>左上角為原點，右下角是(100%,100%)的點。</p>  <p>定義半徑的時候可以用at關鍵字來定義坐標。</p>  <div class="circle1"></div>  <div class="circle2"></div>  <div class="circle3"></div></div>

body {  background-color: #000;}.fa {  border: 1px solid #fff;  color: yellowgreen;  padding: 10px;  margin: 10px;}.fa>div {  width: 110px;  height: 110px;  background-color: yellowgreen;  margin: 20px auto;}.ellipse1 {  clip-path: ellipse(30% 20% at 50% 50%)}.ellipse2 {  clip-path: ellipse(20% 30% at 50% 50%)}.ellipse3 {  clip-path: ellipse(60% 10% at 10% 10%)}

<div class="fa">  <p>ellipse</p>  <p>值為橢圓的x軸半徑，y軸半徑，定位橢圓的坐標三部分組成。</p>  <p>左上角為原點，右下角是(100%,100%)的點。</p>  <p>at關鍵字將半徑和坐標分開</p>  <div class="ellipse1"></div>  <div class="ellipse2"></div>  <div class="ellipse3"></div></div>

body {  background-color: #000;}.fa {  border: 1px solid #fff;  color: yellowgreen;  padding: 10px;  margin: 10px;}.fa>div {  width: 110px;  height: 110px;  background-color: yellowgreen;  margin: 20px auto;}.inset1 {  clip-path: inset(25% 0% 25% 0% round 0% 25% 0% 25%)}.inset2 {  clip-path: inset(0% 25% 25% 0% round 25% 25% 25% 0%)}.inset3 {  clip-path: inset(25% 25% 0% 0% round 0% 25% 0% 25%)}

<div class="fa">  <p>inset</p>  <p>值為(上 右 下 左 round 左上角radius 右上角radius 右下角radius 左下角radius)</p>  <p>round前面的數值，表示的是距離，如果第一個值為25%，則表示圖像在上面從25%開始繪制</p>  <div class="inset1"></div>  <div class="inset2"></div>  <div class="inset3"></div></div>