"Floating" back and edit buttons for to-top screens

<pre><span><style>

[data-test="back-button"] :nth-child(2) {
display: none;
}

[data-test="back-button"] {
background: white !important;
border-radius: 50%;
margin: 4px;
width: 44px;
height: 44px;
}

[data-test="back-button"] svg {
fill: #008080 !important;
}

[data-test="nav-button-Edit"] {
background: white !important;
border-radius: 50%;
margin: 4px;
width: 44px;
height: 44px;
}

[data-test="nav-button-Edit"] svg {
fill: #008080 !important;
}