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Adding Classes

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HTML 

              
                <button class="btn-share">
  <span class="btn-text">Share</span
  ><span class="btn-icon">
    <svg
      t="1580465783605"
      class="icon"
      viewBox="0 0 1024 1024"
      version="1.1"
      xmlns="http://www.w3.org/2000/svg"
      p-id="9773"
      width="18"
      height="18"
    >
      <path
        d="M767.99994 585.142857q75.995429 0 129.462857 53.394286t53.394286 129.462857-53.394286 129.462857-129.462857 53.394286-129.462857-53.394286-53.394286-129.462857q0-6.875429 1.170286-19.456l-205.677714-102.838857q-52.589714 49.152-124.562286 49.152-75.995429 0-129.462857-53.394286t-53.394286-129.462857 53.394286-129.462857 129.462857-53.394286q71.972571 0 124.562286 49.152l205.677714-102.838857q-1.170286-12.580571-1.170286-19.456 0-75.995429 53.394286-129.462857t129.462857-53.394286 129.462857 53.394286 53.394286 129.462857-53.394286 129.462857-129.462857 53.394286q-71.972571 0-124.562286-49.152l-205.677714 102.838857q1.170286 12.580571 1.170286 19.456t-1.170286 19.456l205.677714 102.838857q52.589714-49.152 124.562286-49.152z"
        p-id="9774"
        fill="#ffffff"
      ></path>
    </svg>
  </span>
  <ul class="social-icons">
    <li>
      <a href="https://twitter.com/alphardex007" target="_blank"
        ><svg
          t="1580195676506"
          class="icon"
          viewBox="0 0 1024 1024"
          version="1.1"
          xmlns="http://www.w3.org/2000/svg"
          p-id="2099"
          width="18"
          height="18"
        >
          <path
            d="M962.267429 233.179429q-38.253714 56.027429-92.598857 95.451429 0.585143 7.972571 0.585143 23.990857 0 74.313143-21.723429 148.260571t-65.974857 141.970286-105.398857 120.32-147.456 83.456-184.539429 31.158857q-154.843429 0-283.428571-82.870857 19.968 2.267429 44.544 2.267429 128.585143 0 229.156571-78.848-59.977143-1.170286-107.446857-36.864t-65.170286-91.136q18.870857 2.852571 34.889143 2.852571 24.576 0 48.566857-6.290286-64-13.165714-105.984-63.707429t-41.984-117.394286l0-2.267429q38.838857 21.723429 83.456 23.405714-37.741714-25.161143-59.977143-65.682286t-22.308571-87.990857q0-50.322286 25.161143-93.110857 69.12 85.138286 168.301714 136.265143t212.260571 56.832q-4.534857-21.723429-4.534857-42.276571 0-76.580571 53.979429-130.56t130.56-53.979429q80.018286 0 134.875429 58.294857 62.317714-11.995429 117.174857-44.544-21.138286 65.682286-81.115429 101.741714 53.174857-5.705143 106.276571-28.598857z"
            p-id="2100"
            fill="white"
          ></path></svg
      ></a>
    </li>
    <li>
      <a href="https://codepen.io/alphardex" target="_blank"
        ><svg
          t="1580195734305"
          class="icon"
          viewBox="0 0 1024 1024"
          version="1.1"
          xmlns="http://www.w3.org/2000/svg"
          p-id="2429"
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          height="18"
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          <path
            d="M123.52064 667.99143l344.526782 229.708899 0-205.136409-190.802457-127.396658zM88.051421 585.717469l110.283674-73.717469-110.283674-73.717469 0 147.434938zM556.025711 897.627196l344.526782-229.708899-153.724325-102.824168-190.802457 127.396658 0 205.136409zM512 615.994287l155.406371-103.994287-155.406371-103.994287-155.406371 103.994287zM277.171833 458.832738l190.802457-127.396658 0-205.136409-344.526782 229.708899zM825.664905 512l110.283674 73.717469 0-147.434938zM746.828167 458.832738l153.724325-102.824168-344.526782-229.708899 0 205.136409zM1023.926868 356.00857l0 311.98286q0 23.402371-19.453221 36.566205l-467.901157 311.98286q-11.993715 7.459506-24.57249 7.459506t-24.57249-7.459506l-467.901157-311.98286q-19.453221-13.163834-19.453221-36.566205l0-311.98286q0-23.402371 19.453221-36.566205l467.901157-311.98286q11.993715-7.459506 24.57249-7.459506t24.57249 7.459506l467.901157 311.98286q19.453221 13.163834 19.453221 36.566205z"
            p-id="2430"
            fill="white"
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      ></a>
    </li>
    <li>
      <a href="https://github.com/alphardex" target="_blank"
        ><svg
          t="1580195767061"
          class="icon"
          viewBox="0 0 1024 1024"
          version="1.1"
          xmlns="http://www.w3.org/2000/svg"
          p-id="2759"
          width="18"
          height="18"
        >
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            p-id="2760"
            fill="white"
          ></path></svg
      ></a>
    </li>
  </ul>
</button>
!

CSS 

              
                @import url("https://fonts.googleapis.com/css?family=Roboto:500");

body {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background: #ECEFFC;
}

.btn-share {
  --btn-color: #275efe;
  position: relative;
  padding: 16px 32px;
  font-family: Roboto, sans-serif;
  font-weight: 500;
  font-size: 16px;
  line-height: 1;
  color: white;
  background: none;
  border: none;
  outline: none;
  overflow: hidden;
  cursor: pointer;
  filter: drop-shadow(0 2px 8px rgba(#275efe, 0.32));
  transition: 0.3s cubic-bezier(0.215, 0.61, 0.355, 1); //ease-out-cubic

  &::before {
    position: absolute;
    content: "";
    top: 0;
    left: 0;
    z-index: -1;
    width: 100%;
    height: 100%;
    background: var(--btn-color);
    border-radius: 24px;
    transition: 0.3s cubic-bezier(0.215, 0.61, 0.355, 1);
  }

  .btn-text,
  .btn-icon {
    display: inline-flex;
    vertical-align: middle;
    transition: 0.3s cubic-bezier(0.215, 0.61, 0.355, 1);
  }

  .btn-text {
    transition-delay: 0.05s;
  }

  .btn-icon {
    margin-left: 8px;
    transition-delay: 0.1s;
  }

  .social-icons {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    display: flex;
    margin: 0;
    padding: 0;
    list-style-type: none;
    transform: translateY(-50%);

    li {
      flex: 1;

      a {
        display: inline-flex;
        vertical-align: middle;
        transform: translateY(55px);
        transition: 0.3s cubic-bezier(0.215, 0.61, 0.355, 1);

        &:hover {
          opacity: 0.5;
        }
      }
    }
  }

  &:hover {
    &::before {
      transform: scale(1.2);
    }

    .btn-text,
    .btn-icon {
      transform: translateY(-55px);
    }

    .social-icons li {
      a {
        transform: translateY(0);
      }

      @for $i from 1 through 3 {
        &:nth-child(#{$i}) a {
          transition-delay: 0.1s + 0.05s * $i;
        }
      }
    }
  }
}
!

JS
!
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