How can I position my div at the bottom of its container?

Answer 1

CodePen link here.

html, body {
    width: 100%;
    height: 100%;
}

.overlay {
    min-height: 100%;
    position: relative;
}

.container {
    width: 900px;
    position: relative;
    padding-bottom: 50px;
}

.height {
    width: 900px;
    height: 50px;
}

.footer {
    width: 900px;
    height: 50px;
    position: absolute;
    bottom: 0;
}

    

        

            content
        
    

    

        footer