footer {
  background-color: rgb(20, 20, 20);
  text-align: center;
  -ms-flex-item-align: end;
      align-self: flex-end;
  bottom: 0;
  height: 10vh;
  width: 100%;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: space-evenly;
      -ms-flex-pack: space-evenly;
          justify-content: space-evenly;
}
footer ul {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: horizontal;
  -webkit-box-direction: normal;
      -ms-flex-direction: row;
          flex-direction: row;
  -webkit-box-align: space-evenly;
      -ms-flex-align: space-evenly;
          align-items: space-evenly;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  list-style-type: none;
  border: 2px solid red;
}