header {

  position: sticky;
  top: 0;
  height: var(--header-height);
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  background-color: var(--violet);
  box-sizing: border-box;
  padding: 20px;
  box-shadow: 0 0 6px 2px rgba(0, 0, 0, 0.5);
  z-index: 15;
  transition: all 0.2s linear;

}

#header-title {

  font-size: 24px;
  font-weight: bold;

}

@media (max-width: 500px) {

  header {
    padding: 0!important;
  }

  #header-title {
    font-size: 12px!important;
  }

  #header-by {
    display: none;
  }

}

header * {

  color: white;

}

header > * {

  display: flex;
  flex-direction: row;
  justify-content: flex-start;
  align-items: center;
  box-sizing: border-box;
  height: inherit;
  width: auto;

}

header > * > * {

  margin: 0 10px;
  line-height: var(--header-height);
  box-sizing: border-box;

}

#connexion-button {

  height: auto;
  padding: 7px 15px;
  border-radius: 20px;
  border: none;
  font-size: 15px;
  line-height: normal;
  background-color: var(--green);
  transition: all 0.2s linear;

}

#connexion-button:hover {

  cursor: pointer;
  background-color: var(--dark-green)

}

footer {

  height: var(--footer-height);
  background-color: var(--violet);
  width: 100%;
  box-sizing: border-box;
  padding: 10px;

}