body {
  margin: 0;
}
.clearfix {
    /*
     * For IE 6/7 only
     * Include this rule to trigger hasLayout and contain floats.
     */
    *zoom: 1;
  }
  .clearfix:before,
  .clearfix:after {
    content: " ";
    /* 1 */
    display: table;
    /* 2 */
  }
  .clearfix:after {
    clear: both;
  }
.feature-block.challenge{
    background-color: #f0f0f0;
}
.block-section.challenge {
    padding-bottom: 30px;
}
.block-section.challenge .section-title {
    font-size: 28px;
    padding: 40px 0;
    font-weight: 700;
    color: #2d5082;
    text-align: center;
}

.block-section.challenge .section-title {
    padding: 50px 0;
}
.feature-block.challenge .section-title {
    padding-bottom: 10px;
}


.block-section.challenge .section-desc {
    font-size: 16px;
    color: #2d5082;
    text-align: center;
}

.feature-block.challenge .feature-item-container {
    justify-content: center;
    padding: 40px 0;
    max-width: 1200px;
    margin: 0 auto;
}

.block-section.challenge .section-button {
    text-align: center;
}
.feature-block.challenge a.round-button {
    background-color: #d20032;
    text-align: center;
    border-radius: 30px;
    border: 1px solid #d20032;
    color: #fff;
    font-size: 14px;
    line-height: 18px;
    padding: 7px 15px;
    height: 35px;
    min-width: 132px;
    display: inline-block;
    cursor: pointer;
    text-decoration: none;
    box-sizing: border-box;
}

/* .feature-block.challenge a.round-button:active,.feature-block.challenge a.round-button:hover,.feature-block.challenge a.round-button:visited {
    cursor: pointer;
    background-color: #d20032;
    color: #fff;
    border: 1px solid #d20032;
} */

.feature-block.challenge a.round-button.circle {
    background-color: transparent;
    color: #d20032;
    border: 1px solid #d20032;
}

.feature-block.challenge a.round-button.circle:hover {
  background-color: #d20032;
  color: white;
  border: 1px solid #d20032;
}

@media screen and (min-width: 769px) {

    .feature-block.challenge .feature-item {
      width: 33%;
      float:left;
    }
    .feature-block.challenge .feature-item:nth-last-child(1){
      margin-left: 33.5%
    }
    .feature-block.challenge .feature-item:nth-last-child(2){
      margin-left: 17%
    }
    .feature-block.challenge .feature-item:nth-last-child(2)~.feature-item{
      margin-left: 0
    }
    .feature-block.challenge .feature-item:nth-last-child(3),
    .feature-block.challenge .feature-item:nth-last-child(3)~.feature-item{
      margin-left: 0
    }
    .feature-block.challenge .feature-item:not(:last-child) {
      border-right: 1.4px solid #a2a2a2;
    }
    .feature-block.challenge .feature-item .item-note {
      padding: 0 25px;
    }
  }

.feature-block.challenge .feature-item-container .feature-item .item-img {
    text-align: center;
    padding: 0 0 40px;
}

.feature-block.challenge .feature-item-container .feature-item .item-img img, .solution-detail .solution-content .files-block .files-item-container .files-item .item-container .item-img img {
    max-height: 150px;
}
.feature-block.challenge .feature-item-container .feature-item .item-note {
    font-size: 16px;
    line-height: 30px;
}

.feature-block.challenge .feature-item-container .feature-item .item-note .note-title {
    font-weight: 700;
    color: #505050;
    font-size: 18px;
}
.feature-block.challenge .feature-item-container .feature-item .item-note ul {
    padding-left: 5px;
}
.feature-block.challenge ul {
    width: 100%;
}
.feature-block.challenge .feature-item-container .feature-item .item-note ul li {
    list-style: disc;
    padding: 0;
}

.feature-block.challenge .feature-item-container .feature-item .item-note.dup-ul ul li{
  width: 50%;
  float: left;
}

@media screen and (max-width: 768px) {
  .feature-block.challenge .feature-item-container .feature-item .item-note {
    padding: 25px;
}
  .feature-block.challenge .feature-item-container .feature-item .item-img {
    padding:30px 0;
  }
  .feature-block.challenge {
    padding: 20px 0px;
  }
  .block-section.challenge .section-title {
    padding: 20px;
    text-align: center;
  }
  .block-section.challenge .section-desc{
    padding: 0 20px;
  }
  .block-section.challenge .section-desc p{
    margin: 0 0 10px;
  }

  .feature-block.challenge .feature-item-container {
    /* display: inline-block;
    justify-content: center; */
    width: 100%;
    padding: 0 10px 10px 10px;
    box-sizing: border-box;
  }
  
  .feature-block.challenge .feature-item-container .feature-item {
    width: 100%;
    border-right: none;
    margin: 0;
  }

  .feature-block.challenge .feature-item:not(:last-child) {
    border-bottom: 1.4px solid #a2a2a2;
  }
  .feature-block.challenge .section-button {
    text-align: center;
    padding-bottom: 20px;
}
.feature-block.challenge a.round-button {
    font-size: 18px;
    width: 60%;
    height: auto;
}
}