Thanks Armin, the result is below and works!
/* Style for Czech language button /
html[lang="cs-CZ"] .call-to-action.cs-button,
html[lang="cs-CZ"] .call-to-action.cs-button._BIG {
position: fixed;
top: 7px; / Distance from the top of the viewport /
right: 10%; / Position relative to the horizontal center /
z-index: 10;
display: block; / Ensure the button is visible */
}
/* Hide the English button when Czech is active /
html[lang="cs-CZ"] .call-to-action.en-button {
display: none; / Hide the English button */
}
/* Style for English language button /
html[lang="en-US"] .call-to-action.en-button,
html[lang="en-US"] .call-to-action.en-button._BIG {
position: fixed;
top: 7px; / Distance from the top of the viewport /
right: 10%; / Position relative to the horizontal center /
z-index: 10;
display: block; / Ensure the button is visible */
}
/* Hide the Czech button when English is active /
html[lang="en-US"] .call-to-action.cs-button {
display: none; / Hide the Czech button */
}