與CSS按鈕影片作斗爭

我正在嘗試復制此頁面上看到的按鈕影片：

https://www.beedie.ca/

邊框從左上角到右下角改變顏色的地方。

我可以讓左側和頂部正確設定影片，但隨后線條不再向下延伸并穿過底部，而是為底部和右側展開了一個框。誰能看到我做錯了什么。

我在下面的代碼中附上了我的嘗試。HTML 和 CSS。

.hover-effect-button-container-yellow {
  max-width:150px;
  position:relative;
}

.hover-effect-button-yellow {
  text-align:center;
  border:1px solid white;
  font-family: "Muli", sans-serif;
  font-size: 15px;
  font-weight: 500;
  line-height: 25.5px;
  padding-bottom: 10px;
  padding-left: 25px;
  padding-right: 24px;
  padding-top: 10px;
}

.hover-effect-button-yellow:before {
  box-sizing: inherit;
  content: "";
  position: absolute;
  width: 0;
  height: 0;
}

.hover-effect-button-yellow:after {
  box-sizing: inherit;
  content: "";
  position: absolute;
  width: 0;
  height: 0;
}

.hover-effect-button-yellow:before {
  border-top: 1px solid white;
  border-left: 1px solid white;
  top: 0;
  left: 0;
}

.hover-effect-button-yellow:after {
  border-right:1px solid white;
  border-bottom:1px solid white;
  top: 0;
  left:0;
}

.hover-effect-button-yellow:hover:before {
  width:100%;
  height:100%;
  border-top-color: red;
  border-left-color: red;
  transition: height 1s ease-out, width 1s ease-out;
}

.hover-effect-button-yellow:hover:after {
  width:100%;
  height:100%;
  border-bottom-color: red;
  border-right-color: red;
  transition: height 1s ease-out 1s, width 1s ease-out 1s;
}

<div class="hover-effect-button-container-yellow">
    <div class="hover-effect-button-yellow"> 
        <a href="#">CLICK HERE</a>
    </div>
</div>

uj5u.com熱心網友回復：

你需要給并給<a>它 css。

您需要在按鈕的::before和::after中添加整個邊框：

.button::before, .button::after {
    border: 1px solid transparent;
}

并更改按鈕的 ::before 和 ::after 選擇器懸停時的右上角左下邊框；也改變過渡，如圖所示：

.button:hover::before {
    border-top-color: #0076b6;
    border-right-color: #0076b6;
    transition: width 0.25s ease-out, height 0.25s ease-out 0.25s;
}
.button:hover::after {
    border-bottom-color: #0076b6;
    border-left-color: #0076b6;
    transition: height 0.25s ease-out, width 0.25s ease-out 0.25s;
}

請在下面找到更新的 css 和 html：

.button {
    background: none;
    border: 0;
    box-sizing: border-box;
    padding: 0.9rem 2rem;
    box-shadow: inset 0 0 0 1px #fff;
    color: #000000;
    text-transform: uppercase;
    font-family: "ff-meta-web-pro","Helvetica Neue",Helvetica,Roboto,Arial,sans-serif;
    font-weight: 400;
    letter-spacing: 0.025em;
    position: relative;
    vertical-align: middle;
    transition: color 0.25s;
    display: inline-block;
    text-decoration: none;
}
.button::before {
    top: 0;
    left: 0;
}
.button::before, .button::after {
    box-sizing: inherit;
    content: "";
    position: absolute;
    width: 0;
    height: 0;
    border: 1px solid transparent;
}
.button::after {
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
}
.button:hover {
    outline-width: 0;
    text-decoration: none;
}
.button:hover::before {
    border-top-color: #0076b6;
    border-right-color: #0076b6;
    transition: width 0.25s ease-out, height 0.25s ease-out 0.25s;
}
.hover-effect-button-container-yellow {
    padding: 10px;
    background: pink;
}
.button:hover::before, .button:hover::after {
    width: 100%;
    height: 100%;
}
.button:hover::after {
    border-bottom-color: #0076b6;
    border-left-color: #0076b6;
    transition: height 0.25s ease-out, width 0.25s ease-out 0.25s;
}

<div class="hover-effect-button-container-yellow">
   <div class="hover-effect-button-yellow"> 
      <a class="button" href="https://beedie.ca/industrial/">Learn More</a>
   </div>
</div>

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