html.scss

*, *:before, *:after {
  box-sizing: border-box;
  position: relative;
}

body, html {
  overflow: hidden;
  background: $silver;
}

body, html, #root {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 12px;
  line-height: 1.5rem;
  height: 100%;
  min-height: 100%;
}




.button {
  border-width: 1px;
  border-style: solid;
  border-color: rgba(0, 0, 0, .04) rgba(0, 0, 0, .08) rgba(0, 0, 0, .14);
  border-radius: 4px;
  background-color: white;
  background-image: linear-gradient(to top, rgba(255, 255, 255, .8) 0%, rgba(245, 245, 245, .4) 50%, rgba(160, 160, 160, .1) 100%);
  background-clip: padding-box;
  cursor: pointer;
  position: relative;
  overflow: visible;
  display: inline-block;
  color: #333;
  text-shadow: 0 1px 0 white;
  padding: .25rem .5rem;
  margin: 0;
  white-space: nowrap;
  text-align: center;
  vertical-align: baseline;
  box-shadow: inset 0 -1px 0 rgba(255, 255, 255, .2);
  transition: background-color .3s, border-color .3s, box-shadow .3s;
  box-sizing: border-box;


  &:hover {
    outline: 0;
    color: #333;
    background-color: #f3f3f3;
    border-color: rgba(0, 0, 0, .04) rgba(0, 0, 0, .13) rgba(0, 0, 0, .23);
    box-shadow: inset 0 -1px 0 rgba(255, 255, 255, .2), 0 0 5px rgba(0, 0, 0, .15)
  }

}