Hi Khanhedu,
Apologies for the late reply,
We are having issue in our support forum.
Regarding to your question go to Appearance > Customize/Theme Options > Design Options Tab > Custom CSS paste the following CSS code and Click on save button:
.featured-text .featured-title {
background-color: #63c6ae;
}
Note: Change the above HEX color code #63c6ae to your own color code.
Thank you!
Regards,
Theme Horse
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