.content {
  display: flex;
  flex-direction: column;
  width: 100vw;
  height: calc(100vh - 13rem);
  position: relative;
  justify-content: flex-start;
  align-items: center;
}

.content_container {
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  text-align: center;
  margin: -5.5vw 0 0 0;
  z-index: 100;
  color: var(--color-text);
  line-height: 1;
}

.content_login {
  position: relative;
  width: 500px;
  margin: auto;
  flex-direction: row;
  justify-content: center;
  padding: 2rem;
  border: 1px solid var(--color-background);
  border-radius: .25rem;
  background-color: var(--color-background);
  opacity: 0.87;
}

@media (min-width: 451px) and (max-width: 700px) {
  .content_login {
    width: 400px;
  }
}

@media (max-width: 450px) {
  .content_login {
    width: 300px;
  }

  .im-nav {
    margin: 2rem 1rem 0 1rem;
  }

  ul li {
    display: block;
  }

    ul li + li:before {
      content: "";
      padding: 0;
    }
}