JSFiddle - React, Tailwind, and code Playground

by Константин Дралюк

HTML

<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/style.css">
<div class="preview">
  <div class="size-btn">
    <a href="javascript:void(0)" class="size-btn__text">
      Подобрать размер
    </a>
    <div class="size-btn__size-hint">
      <div class="size-btn__size">
        35 <span>EUR</span>
      </div>
      <a href="javascript:void(0)" class="size-btn__hint"></a>
    </div>
    
    <div class="size-btn-hint">
      <div class="size-btn-hint__text">Краткий описательный текст про данный размер</div>
      <a href="javascript:void(0)" class="size-btn-hint__btn">OK</a>
    </div>
  </div>
</div>

SCSS

.preview {
  font-family: 'Proxima Nova Rg', sans-serif;
  padding: 50px;
}

.size-btn, .size-btn * {
  box-sizing: border-box;
}
.size-btn {
  display: inline-flex;
  height: 45px;
  border: 1px solid #000;
  cursor: default;
  position: relative;
}
.size-btn__text {
  display: flex;
  align-items: center;
  padding: 0 15px;
  font-size: 14px;
  font-weight: bold;
  border-right: 1px solid #000;
  transition: .15s ease;
  cursor: pointer;
  text-decoration: none;
  color: #000;
}
.size-btn__text:hover {
  background-color: #e5e5e5;
}
.size-btn__size-hint {
  display: flex;
  align-items: center;
  padding-left: 6px;
}
.size-btn__size {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 16px;
  font-weight: bold;
  line-height: 1;
}
.size-btn__size span {
  font-size: 10px;
  font-weight: normal;
}
.size-btn__hint {
  margin: 0 6px;
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  background: #000 no-repeat center url(data:img/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAYAAAAICAQAAABwz0azAAAABGdBTUEAALGPC/xhBQAAACBjSFJNAAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAAAmJLR0QA/4ePzL8AAAAHdElNRQflBgQNFgZ3XMHXAAAASklEQVQI10WIQQ2AMBDAGoIBLJwFkICFWZgFLKABCVhgWpCwSSiPZaGvthg+qh4wk2lsBLeFjqsaXbOaxtcdYALgov3xsjCwegJ8q+cem0BKf2UAAAAASUVORK5CYII=);
  border-radius: 50%;
  font-size: 12px;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  transition: .15s ease;
}

.size-btn__hint:hover {
  background-color: #343433;
}

.size-btn-hint {
  position: absolute;
  left: 100%;
  top: 50%;
  transform: translateX(8px) translateY(-50%);
  opacity: 0;
  visibility: hidden;
  transition: .25s ease;
  min-width: 210px;
  padding: 27px 17px 50px;
  box-shadow: 0px 6px 29.75px 5.25px rgba(1, 1, 1, 0.22);
  background: #fff;
  cursor: default;
}
.size-btn-hint.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateX(-8px) translateY(-50%);
}
.size-btn-hint__text {
 ...

JavaScript

!function () {
	var $showHint = document.querySelector('.size-btn__hint')
	var $hint = document.querySelector('.size-btn-hint')
  var $closeHint = document.querySelector('.size-btn-hint__btn')
  
  $showHint.addEventListener('click', function () {
  	$hint.classList.add('is-visible')
  })
  $closeHint.addEventListener('click', function () {
	  $hint.classList.remove('is-visible')
  })
}();