悬停时无法更改元素的边框颜色

Question

我正在尝试在用户将鼠标悬停在按钮上时更改三角形的颜色。

我尝试将样式应用到按钮的悬停子元素上，但没有成功。

如何让三角形在按钮悬停时使用普通按钮的背景颜色改变颜色。

我的代码：

#contact-form .submit {
    background: none repeat scroll 0 0 #3f3f3f;
    display: block;
    margin-top: 30px;
    padding: 16px 40px;
    width: 115px;
}

.contact-submit a {
 color: #222;
    font-weight: normal;
}

#contact-form > .contact-submit > .hvr-bubble-float-top {
  display: inline-block;
  vertical-align: middle;
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
  box-shadow: 0 0 1px rgba(0, 0, 0, 0);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  -moz-osx-font-smoothing: grayscale;
  position: relative;
  -webkit-transition-duration: 0.2s;
  transition-duration: 0.2s;
  -webkit-transition-property: transform;
  transition-property: transform;
  top: 0;
}

#contact-form > .contact-submit > .hvr-bubble-float-top:before {
  position: absolute;
  z-index: -1;
  content: '';
  left: calc(50% - 10px);
  top: 0;
  border-style: solid;
  border-width: 0 10px 10px 10px;
  border-color: transparent transparent #666 transparent;
  -webkit-transition-duration: 0.2s;
  transition-duration: 0.2s;
  -webkit-transition-property: transform;
  transition-property: transform;
}

#contact-form > .contact-submit > .hvr-bubble-float-top:hover, #contact-form > .contact-submit > .hvr-bubble-float-top:focus, #contact-form > .contact-submit > .hvr-bubble-float-top:active {
  -webkit-transform: translateY(10px);
  transform: translateY(10px);
  -webkit-transition-duration: 0.2s;
  transition-duration: 0.2s;
  display: inline-block;
  background-color: #666;
  border-color: transparent transparent #666 transparent !important;
}

#contact-form > .contact-submit > .hvr-bubble-float-top:hover:before, #contact-form > .contact-submit > .hvr-bubble-float-top:focus:before, #contact-form > .contact-submit > .hvr-bubble-float-top:active:before {
  -webkit-transform: translateY(-10px);
  transform: translateY(-10px);
  -webkit-transition-duration: 0.2s;
  transition-duration: 0.2s;
  position: absolute;
  z-index: 5000;
}

<p class="contact-submit">
                 <a id="contact-submit" class="submit hvr-bubble-float-top" href="#">SEND MESSAGE</a>
                </p>

Answer 1

CSS 尝试转换的唯一属性是 transform，因为此代码：

transition-property: transform;

您发布的代码中有很多内容，但首先要尝试将其更改为：

transition-property: transform, border-color;

再试一次。

Answer 2

为 .hvr-bubble-float-top:hover:before 更新 border-bottom-color。使用您的样式作为基础：

#contact-form > .contact-submit > .hvr-bubble-float-top:hover:before,
#contact-form > .contact-submit > .hvr-bubble-float-top:focus:before,
#contact-form > .contact-submit > .hvr-bubble-float-top:active:before {
    …
    border-bottom-color: red;
}

Sample.

悬停时无法更改元素的边框颜色

Can't change element's border colour on hover

css

button

css-transitions