html - 如何在按钮的中心添加两条线

Question

有一个带边框的按钮:3px solid #E82929;什么技术可以用来添加像照片中的额外线条？

.btn {
  position: relative;
  width: 362px;
  height: 71px;
  color: #FFFFFF;
  background-color: #000000;
  border: 3px solid #E82929;
  font-family: 'Flamenco';
  font-style: normal;
  font-weight: 400;
  font-size: 24px;
  line-height: 25px;
  text-align: center;
}

<button class="btn">Забронировать столик</button>

Answer 1

使用渐变

.btn {
  position: relative;
  padding: 20px 50px;
  color: #FFFFFF;
  border: 3px solid #E82929;
  font-family: 'Flamenco';
  font-style: normal;
  font-weight: 400;
  font-size: 24px;
  line-height: 25px;
  text-align: center;
  
  background: linear-gradient(90deg, #E82929 40px,#0000 0 calc(100% - 40px), #E82929 0) 50%/100% 3px no-repeat;
  background-color: #000000;
}

<button class="btn">Забронировать столик</button>