css3創建多邊形clip屬性，可用來繪制不規則圖形了

.path1 {
    clip-path: polygon(5px 10px, 16px 3px, 16px 17px);
}
.path2 {
    clip-path: polygon(3px 5px, 17px 5px, 10px 16px);
}
.path3 {
    clip-path: polygon(5px 10px, 16px 3px, 16px 10px, 26px 10px, 26px 3px, 37px 10px, 26px 17px, 26px 10px, 16px 10px, 16px 17px);
}
.path4 {
    clip-path: polygon(5px 10px, 16px 3px, 16px 10px, 36px 10px, 36px 3px, 47px 10px, 36px 17px, 36px 10px, 16px 10px, 16px 17px);
}
.path5 {
    clip-path: polygon(5px 10px, 16px 3px, 16px 9px, 36px 9px, 36px 3px, 47px 10px, 36px 17px, 36px 10px, 16px 10px, 16px 17px);
}
.path6 {
    clip-path: polygon(5px 10px, 16px 3px, 16px 9px, 36px 9px, 36px 3px, 47px 10px, 36px 17px, 36px 11px, 16px 11px, 16px 17px);
}
.path7 {
    clip-path: polygon(5px 11px, 5px 9px, 16px 3px, 26px 3px, 40px 9px, 48px 15px, 48px 5px, 40px 11px, 26px 17px, 16px 17px);
}

可參考https://www.w3cplus.com/css3/creating-responsive-shapes-with-clip-path.html

和張鑫旭的文章

clip-path現在改為了clip