sticky footer coming in between of Setting Page

I've put my sticky footer page in master page and it has gone well but when I opened my Setting page it has shown there like this:

please tell me how can overcome with this problem. I want footer in bottom of the each page. My Css is:

customFooter{

background-color: rgb(28, 108, 169);
position: absolute;
bottom: 0;
width: 100%;
padding-top: 5px;
text-align: center;
min-height: 19px;

}