.slider {
  width: 100%;
  height: 400px;
  position: relative;
  margin: auto;
  overflow-x: scroll;
  overflow-y: hidden;
}

.slider::-webkit-scrollbar {
  display: none;
}

.slider .slide {
  display: flex;
  position: absolute;
  left: 0;
  transition: 0.3s left ease-in-out;
}

.slider .item {
  margin-right: 10px;
}

.slider .item:last-child {
  margin-right: 0;
}

.ctrl {
  text-align: center;
  margin-top: 5px;
}

.ctrl-btn {
  padding: 20px 20px;
  min-width: 50px;
  background: #ec3237;
  border: none;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  outline: none;
  color:#fff;

  position: absolute;
  top: 50%;
  margin-top: -27.5px;
}

.ctrl-btn.pro-prev {
  left: 0;
}

.ctrl-btn.pro-next {
  right: 0;
}

       <style>
        .slider {
  width: 100%;
  height: 400px;
  position: relative;
  margin: auto;
  overflow-x: scroll;
  overflow-y: hidden;
}

.slider::-webkit-scrollbar {
  display: none;
}

.slider .slide {
  display: flex;
  position: absolute;
  left: 0;
  transition: 0.3s left ease-in-out;
}

.slider .item {
  margin-right: 10px;
}

.slider .item:last-child {
  margin-right: 0;
}

.ctrl {
  text-align: center;
  margin-top: 5px;
}

.ctrl-btn {
  padding: 20px 20px;
  min-width: 50px;
  background: #ec3237;
  border: none;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  outline: none;

  position: absolute;
  top: 50%;
  margin-top: -27.5px;
}

.ctrl-btn.pro-prev {
  left: 0;
}

.ctrl-btn.pro-next {
  right: 0;
}

    </style>