.slick-slider {
    -moz-user-select: none;
    box-sizing: border-box;
    display: block;
    position: relative;
}
.slick-list {
    display: block;
    margin: 0;
    overflow: hidden;
    padding: 0;
    position: relative;
}
.slick-list:focus {
    outline: medium none;
}
.slick-list.dragging {
    cursor: pointer;
}
.slick-slider .slick-track, .slick-slider .slick-list {
    transform: translate3d(0px, 0px, 0px);
}
.slick-track {
    display: block;
    left: 0;
    position: relative;
    top: 0;
}
.slick-track::before, .slick-track::after {
    content: "";
    display: table;
}
.slick-track::after {
    clear: both;
}
.slick-loading .slick-track {
    visibility: hidden;
}
.slick-slide {
    display: none;
    float: left;
    height: 100%;
    min-height: 1px;
}
[dir="rtl"] .slick-slide {
    float: right;
}
.slick-slide img {
    display: block;
}
.slick-slide.slick-loading img {
    display: none;
}
.slick-slide.dragging img {
    pointer-events: none;
}
.slick-initialized .slick-slide {
    display: block;
}
.slick-loading .slick-slide {
    visibility: hidden;
}
.slick-vertical .slick-slide {
    border: 1px solid transparent;
    display: block;
    height: auto;
}
.slick-arrow.slick-hidden {
    display: none;
}

/*追記*/
.design-list div{
}
.content {
  background-color: #c1e8d8;
  margin-bottom: 50px;
  padding: 1px 0;
}
.slider {
  margin: 21px auto;
  width: 770px;
}