div 背景图片,适配变形,可以用边框形式
border: 1.5625vw solid transparent; border-top-width: 3vw; border-left-width: 1vw; border-right-width: 1vw; border-bottom-width: 3vw; border-color: transparent; position: relative; border-image-source: url(img/card_bg.24a12478.png); border-image-slice: 70 20 70 20 fill; border-image-outset: 0px; border-image-repeat: stretch repeat;
内容高度 设置为 calc(100% + 4vw)
未闻花名