How to add a button to the bottom of the Mobile Menu.

The way I'm currently implementing it,

  • I'm using the last item on the Menu as my Button(after styling it with CSS)
  • Have made it position Absolute and made the height of Mobile 100vh
  • Now on different browsers(Safari/Chrome/Firefox) & different mobiles(iPhone/Android) the actual viewable screen size is different than the Device Screen Height (100vh)
  • So I have set the Bottom value of the Bottom button with an offset of 131px. However, this is giving me a white gap after the Button(my Mobile Menu background is white)

How do I set the Button to exactly sit in the Bottom with zero pixel gap after the Button?(for all mobile devices & all mobile browsers)

More details:

Button is just a new Custom Menu Item added via Wordpress Menu Settings section from WP-Admin. And have applied .app-dl-button class to it.

CSS Code:

@media only screen and (max-width: 500px) and (min-width: 300px)
    height: 56px;

    height: 100vh;

    display: unset !important;
    position: absolute !important; /*adding important as conflicts with CSS in main.css*/
    bottom: 131px; /*56px is height of Header menu and 50px additional required for addressbar*/
    /*bottom: 106px;*/ /*56px is height of Header menu and 50px additional required for addressbar*/
    /*bottom: 81px;*/ /*56px is height of Header menu and 25px additional required for addressbar*/
    text-align: center !important; /*conflicts with CSS in main.css*/
    width: 100vw;
    background-color: #236df1;

      content: url(https://pathto/download-arrow.svg);
    position: absolute;
    z-index: 100000;
    left: 28vw;
    top: 15px;
  • Can you show some code please?
    – funkysoul
    Feb 22, 2018 at 20:03
  • Hi @funkysoul, Added more details in the Question. There is only CSS code, no other coding done. I have directly added new menu item from default wordpress Menu settings from Wp-Admin
    – Shailesh
    Feb 23, 2018 at 4:30

1 Answer 1


I got it working. It works properly if I use position fixed.

        display: unset !important;
        position: fixed !important; 
        bottom: 0px;   
        text-align: center !important;
        width: 100vw;
        background-color: #236df1;

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