* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  display: flex;
  height: 100vh;
  background-color: #f3f4f5;
  justify-content: center;
  align-items: center;
  padding: 20px;
  flex-direction: column;
  overflow: hidden;
}
img {
  width: 200px;
}
:root {
  --primary-color: #5fbba7;
}

h1 {
  color: var(--primary-color);
  letter-spacing: 2px;
  margin: 0.2em 0;
}
p {
  text-align: center;
}
.select-container {
  width: 80px;
  position: relative;
}

.select-container > ul,
.select-container > ul li {
  list-style: none;
}

.select-container > .select-title {
  position: relative;
  width: 100%;
}

.select-container > .select-title > .select-content {
  height: 38px;
  border: 1px solid #e6e6e6;
  background-color: #ffffff;
  border-radius: 2px;
  cursor: pointer;
  padding-left: 10px;
  padding-right: 22px;
  width: 100%;
  box-sizing: border-box;
  line-height: 38px;
  outline: none;
  color: #535353;
}

.select-icon {
  position: relative;
  display: inline-block;
  vertical-align: middle;
  width: 0;
  height: 0;
  border-width: 6px;
  border-style: dashed;
  border-color: transparent;
  overflow: hidden;
}

.select-container > .select-title > .select-icon {
  position: absolute;
  right: 10px;
  top: 50%;
  cursor: pointer;
  border-top-color: #c2c2c2;
  border-top-style: solid;
  transition: all 0.3s;
  margin-top: -3px;
}

.select-container > .select-title > .select-up {
  margin-top: -9px;
  transform: rotate(180deg);
}

.select-container > .select-items {
  position: absolute;
  left: 0;
  padding: 5px 0;
  z-index: 899;
  min-width: 100%;
  border: 1px solid #d2d2d2;
  max-height: 150px;
  overflow-y: auto;
  background-color: #fff;
  border-radius: 2px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.12);
  display: none;
}

.select-container > .select-items .select-option {
  padding: 0 10px;
  line-height: 36px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
  transition: 0.5s all;
  background-color: #f2f2f2;
  color: #535353;
}

.select-container > .select-items .search-input {
  padding: 0 10px;
  line-height: 36px;
  outline: none;
  border: none;
  margin-left: 10px;
  margin-right: 10px;
  margin-bottom: 4px;
  cursor: pointer;
  border-radius: 5px;
}

.select-container > .select-items .select-option:hover {
  background-color: #5fb878;
  color: #fff;
}

.select-container > .select-items > .select-this {
  background-color: #5fb878;
  color: #fff;
}
.container{
  height: 100vh;
  overflow-x: hidden;
  overflow-y: auto;
}
.container .swap-rate-container,
.container .currency {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.container .currency {
  padding: 40px 0;
}
.container .currency .amount-number {
  width: calc(100% - 80px);
  border: none;
  background-color: transparent;
  font-size: 32px;
  text-align: right;
  outline: none;
}
.container .swap-btn {
  color: #ffffff;
  background-color: var(--primary-color);
  cursor: pointer;
  border-radius: 5px;
  font-size: 14px;
  letter-spacing: 2px;
  padding: 6px 16px;
  outline: none;
  border: 1px solid #f2f3f4;
}
.container .swap-btn:hover {
  opacity: 0.8;
}
.container .rate {
  color: var(--primary-color);
  font-size: 14px;
  padding: 10px 0;
}
::-webkit-scrollbar {
  width: 0;
  height: 0;
}