style.css

*,
*::before,
*::after{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Poppins", sans-serif;
    font-weight: 400;
    font-size: 15px;
    line-height: 1.7;
    color: #fff;
    background-color: #1f2029;
    min-height: 100vh;
    margin: 0;
    padding: 0;
    overflow-x: none;
  }

p {
    font-family: "Poppins", sans-serif;
    font-weight: 400;
    font-size: 16px;
    line-height: 1.7;
    color: #fff;
    margin: 0;
  }

  .section-fluid-main {
    position: relative;
    display: block;
    width: 100%;
    overflow: hidden;
  }

  .section {
    position: relative;
    max-width: calc(100% - 40px);
    width: 860px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    padding: 100px 0;
  }
  
  .section-fluid {
    position: relative;
    width: 100%;
    display: block;
  }

[type="radio"]:checked,
[type="radio"]:not(:checked) {
  position: absolute;
  visibility: hidden;
}

.color-btn:checked + label,
.color-btn:not(:checked) + label {
  position: relative;
  height: 40px;
  transition: all 200ms linear;
  border-radius: 4px;
  width: 40px;
  overflow: hidden;
  border: none;
  cursor: pointer;
  color: #ffeba7;
  margin-right: 10px;
  box-shadow: 0 12px 35px 0 rgba(16, 39, 112, 0.25);
  z-index: 10;
  background-position: center;
  background-size: cover;
  border: 3px solid transparent;
}

.color-btn:checked + label {
    border-color: #434343;
    transform: scale(1.1);
  }

  label.first-color {
    margin-left: 500px;
    background-image: url("./images/color1.jpg");
  }
  label.color-2 {
    background-image: url("./images/color2.jpg");
  }
  label.color-3 {
    background-image: url("./images/color3.jpg");
  }
  label.color-4 {
    background-image: url("./images/color4.jpg");
  }
  label.color-5 {
    background-image: url("./images/color5.jpg");
  }
  label.color-6 {
    background-image: url("./images/color6.jpg");
  }

  .img-wrap {
    position: absolute;
    top: 100px;
    left: 0;
    width: 500px;
    height: 410px;
    display: inline-block;
    z-index: 9;
    transition: all 550ms linear;
    transition-delay: 100ms;
    background-position: center top;
    background-size: 100%;
    background-repeat: no-repeat;
    background-image: url("./images/chair1.png");
    opacity: 0;
  }

  .for-color-1:checked ~ .img-wrap.chair-1 {
    opacity: 1;
    animation: shake 0.7s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
  }
  .img-wrap.chair-2 {
    background-image: url("./images/chair2.png");
  }
  .for-color-2:checked ~ .img-wrap.chair-2 {
    opacity: 1;
    animation: shake 0.7s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
  }
  .img-wrap.chair-3 {
    background-image: url("./images/chair3.png");
  }
  .for-color-3:checked ~ .img-wrap.chair-3 {
    opacity: 1;
    animation: shake 0.7s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
  }
  .img-wrap.chair-4 {
    background-image: url("./images/chair4.png");
  }
  .for-color-4:checked ~ .img-wrap.chair-4 {
    opacity: 1;
    animation: shake 0.7s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
  }
  .img-wrap.chair-5 {
    background-image: url("./images/chair5.png");
  }
  .for-color-5:checked ~ .img-wrap.chair-5 {
    opacity: 1;
    animation: shake 0.7s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
  }
  .img-wrap.chair-6 {
    background-image: url("./images/chair6.png");
  }
  .for-color-6:checked ~ .img-wrap.chair-6 {
    opacity: 1;
    animation: shake 0.7s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
  }
  @keyframes shake {
    10%,
    90% {
      transform: translate3d(-1px, 0, 0) rotate(-1deg);
    }
    20%,
    80% {
      transform: translate3d(2px, 0, 0) rotate(2deg);
    }
    30%,
    50%,
    70% {
      transform: translate3d(-3px, 0, 0) rotate(-3deg);
    }
    40%,
    60% {
      transform: translate3d(3px, 0, 0) rotate(3deg);
    }
  }

  .back-color {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
    z-index: 1;
    background-image: linear-gradient(196deg, #f1a9a9, #e66767);
    transition: all 250ms linear;
    transition-delay: 300ms;
  }

  .back-color.chair-2 {
    background-image: linear-gradient(196deg, #4c4c4c, #262626);
    opacity: 0;
  }
  .for-color-2:checked ~ .back-color.chair-2 {
    opacity: 1;
  }
  .back-color.chair-3 {
    background-image: linear-gradient(196deg, #8a9fb2, #5f7991);
    opacity: 0;
  }
  .for-color-3:checked ~ .back-color.chair-3 {
    opacity: 1;
  }
  .back-color.chair-4 {
    background-image: linear-gradient(196deg, #97afc3, #6789a7);
    opacity: 0;
  }
  .for-color-4:checked ~ .back-color.chair-4 {
    opacity: 1;
  }
  .back-color.chair-5 {
    background-image: linear-gradient(196deg, #afa6a0, #8c7f76);
    opacity: 0;
  }
  .for-color-5:checked ~ .back-color.chair-5 {
    opacity: 1;
  }

  .back-color.chair-6 {
    background-image: linear-gradient(196deg, #aaadac, #838786);
    opacity: 0;
  }
  .for-color-6:checked ~ .back-color.chair-6 {
    opacity: 1;
  }
  
  .info-wrap {
    position: relative;
    margin-left: 500px;
    z-index: 10;
    display: block;
    text-align: left;
  }
  .title-up {
    font-family: "Poppins", sans-serif;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 13px;
    line-height: 1.2;
    color: #fff;
    margin-top: 0;
    margin-bottom: 10px;
  }

  h2 {
    font-family: "Poppins", sans-serif;
    font-weight: 800;
    font-size: 34px;
    line-height: 1.2;
    color: #fff;
    margin-top: 0;
    margin-bottom: 10px;
  }
  h4 {
    font-family: "Poppins", sans-serif;
    font-weight: 500;
    font-size: 26px;
    line-height: 1.2;
    color: #fff;
    margin-top: 0;
    margin-bottom: 30px;
  }
  h4 span {
    text-decoration: line-through;
    font-size: 20px;
    opacity: 0.6;
    padding-left: 15px;
  }
  h5 {
    font-family: "Poppins", sans-serif;
    font-weight: 600;
    font-size: 18px;
    line-height: 1.2;
    color: #fff;
    margin-top: 0;
    margin-bottom: 20px;
  }
  .desc-btn:checked + label,
  .desc-btn:not(:checked) + label {
    position: relative;
    transition: all 200ms linear;
    display: inline-block;
    border: none;
    cursor: pointer;
    color: #ffeba7;
    font-family: "Poppins", sans-serif;
    font-weight: 600;
    font-size: 18px;
    line-height: 1.2;
    color: #fff;
    margin-right: 25px;
    opacity: 0.5;
  }

  .desc-btn:checked + label {
    opacity: 1;
  }
  .desc-btn:not(:checked) + label:hover {
    opacity: 0.8;
  }
  
  .desc-sec {
    padding-top: 20px;
    padding-bottom: 30px;
    transition: all 250ms linear;
    opacity: 0;
    overflow: hidden;
    pointer-events: none;
    transform: translateY(20px);
  }

  .desc-sec.accor-2 {
    position: absolute;
    top: 25px;
    left: 0;
    width: 100%;
    z-index: 2;
  }
  #desc-1:checked ~ .desc-sec.accor-1 {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }
  #desc-2:checked ~ .desc-sec.accor-2 {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .section-inline {
    position: relative;
    display: inline-block;
    margin-right: 20px;
  }
  .section-inline p span {
    font-size: 30px;
    line-height: 1.1;
  }
  
  .btn {
    position: relative;
    font-family: "Poppins", sans-serif;
    font-weight: 500;
    font-size: 14px;
    line-height: 2;
    height: 48px;
    border-radius: 4px;
    width: 210px;
    letter-spacing: 1px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
    overflow: hidden;
    background-color: transparent;
    color: #fff;
    box-shadow: 0 6px 15px 0 rgba(16, 39, 112, 0.15);
    transition: all 250ms linear;
    text-decoration: none;
    margin-top: 50px;
  }
  .icon {
    padding-right: 7px;
    font-size: 20px;
  }
  .btn:before {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    content: "";
    z-index: -1;
    background-color: #944852;
    transition: background-color 250ms 300ms ease;
  }

  .btn:hover {
    box-shadow: 0 12px 35px 0 rgba(16, 39, 112, 0.25);
    background-color: #333;
  }
  .for-color-2:checked ~ .info-wrap .btn:before {
    background-color: #1a1a1a;
  }
  .for-color-3:checked ~ .info-wrap .btn:before {
    background-color: #40566e;
  }
  .for-color-4:checked ~ .info-wrap .btn:before {
    background-color: #5e89b2;
  }
  .for-color-5:checked ~ .info-wrap .btn:before {
    background-color: #8c7f76;
  }
  .for-color-6:checked ~ .info-wrap .btn:before {
    background-color: #5d6160;
  }

  @media screen and (max-width: 991px) {
    .section {
      margin: 0 auto;
      text-align: center;
      max-width: calc(100% - 40px);
      width: 370px;
    }
    label.first-color {
      margin-left: 0;
    }
    .info-wrap {
      margin-left: 0;
      width: 370px;
      margin: 0 auto;
      text-align: center;
    }
    .img-wrap {
      width: 375px;
      height: 308px;
      left: 50%;
      margin-left: -190px;
    }
    .mob-margin {
      margin-top: 320px;
    }
    .desc-btn:checked + label,
    .desc-btn:not(:checked) + label {
      margin-right: 15px;
      margin-left: 15px;
    }
    .color-btn:checked + label,
    .color-btn:not(:checked) + label {
      height: 40px;
      width: 40px;
      margin: 5px auto;
      text-align: center;
    }
    .section-inline {
      margin: 0 5px;
    }
  }
  
  @media screen and (max-width: 575px) {
    .section {
      width: 280px;
    }
    .info-wrap {
      width: 280px;
    }
    .color-btn:checked + label,
    .color-btn:not(:checked) + label {
      height: 30px;
      width: 30px;
    }

    .section-inline p span {
        font-size: 24px;
        line-height: 1.1;
      }
      .section-inline p {
        font-size: 14px;
      }
    }