welcome.css

/*
 * Welcome modal styles. Note that styles in this file is mobile-first
 */

.modal-wrap {
  position: fixed;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100vw;
  height: 100vh;
  z-index: 9999;
  padding: 15px;

  background-color: rgba(0,0,0,0.5)
}

.modal {
  height: auto;
  border-radius: 3px;
  max-width: 600px;
  padding: 20px;
  background-color: #fff;
  text-align: center;
}

.modal-languages {
  display: flex;
  flex-direction: column;
  margin: auto;
}
.welcome-lang-button {
  cursor: pointer;
  border-radius: 3px;
  margin: 0.5em;
  padding: .5em 0;
  font-size: 120%;
  font-weight: bold;
  border: none;
  color: white;
  background-color: royalblue;
}
.welcome-lang-button .lang-flag {
  margin-right: .5em;
  border: 2px solid white
}

/** Larger screens */
@media only screen and (min-width: 640px) {
 .modal-languages {
   max-width: 720px;
 } 
}