CSS - before/after How to display the back block from the front-CodePudding

I created a button with "after" to display the orange background, but it appears in front of me

You can also look at my code in codesandbox

CodePudding user response：

try changing z-index property.

CodePudding user response：

set the z-index: -1; for the ::after pseudo element

CodePudding user response：

Use the z-index to move the after/before block to the back of the block

    .subscribeBtn {
      width: 136px;
      height: 62px;
      position: relative;
      font-family: "Montserrat-regular";
      font-style: normal;
      font-weight: normal;
      font-size: 18px;
      line-height: 22px;
      letter-spacing: 0.05em;
      color: #1b1b1b;
      border: 1px solid #1b1b1b;
      box-sizing: border-box;
      background: #fff;
    }
    .subscribeBtn::after {
      content: "";
      width: 100%;
      height: 100%;
      background: #ff5f10;
      top: -10px;
      left: -10px;
      position: absolute;
      z-index:-1;
    }

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>Static Template</title>
  </head>
  <body>
    <div style="margin: 40px;">
      <button class="subscribeBtn">
        Subscribe
      </button>
    </div>
  </body>
</html>

CodePudding user response：

add background: transparent; to .subscribeBtn and z-index: -1; to .subscribeBtn:after

here is the example

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>Static Template</title>
  </head>
  <body>
    <div style="margin: 40px;">
      <button class="subscribeBtn">
        Subscribe
      </button>
    </div>
  </body>

  <style>
    .subscribeBtn {
      width: 136px;
      height: 62px;
      position: relative;
      font-family: "Montserrat-regular";
      font-style: normal;
      font-weight: normal;
      font-size: 18px;
      line-height: 22px;
      letter-spacing: 0.05em;
      color: #1b1b1b;
      border: 1px solid #1b1b1b;
      box-sizing: border-box;
      background: transparent;
    }
    .subscribeBtn::after {
      content: "";
      width: 100%;
      height: 100%;
      background: #ff5f10;
      top: -10px;
      left: -10px;
      position: absolute;
      z-index: -1;
    }
  </style>