keep footer at bottom of page

1#page-container {
2  position: relative;
3  min-height: 100vh;
4}
5
6#content-wrap {
7  padding-bottom: 2.5rem;    /* Footer height */
8}
9
10#footer {
11  position: absolute;
12  bottom: 0;
13  width: 100%;
14  height: 2.5rem;            /* Footer height */
15}

1#footer {
2   position:fixed;
3   left:0px;
4   bottom:0px;
5   z-index:1;
6   width:100%;
7}

1#footer {
2  position: relative;
3  margin-top: -180px;
4  /* negative value of footer height */
5  height: 180px;
6  clear: both;
7 /*Custom styling*/
8}
9
10/* Opera Fix thanks to Maleika (Kohoutec) */
11
12body:before {
13  content: "";
14  height: 100%;
15  float: left;
16  width: 0;
17  margin-top: -32767px;
18  /* thank you Erik J - negate effect of float*/
19}