Changing the design of my drop down menu

[SweetsFR]

Hey! I just added a drop down menu. But i don't really like the design and would like to change the colour / design if possible! Can someone help me for this? I joined a photo of my drop down menu, and here is the link of my website: www.sweetskendamasfr.com !

my theme is: Supply Theme

Thank you by advance!

[KetanKumar]

@SweetsFR 

Thanks for post 

can you please try this 

1. Go to Online Store->Theme->Edit code
2. Asset->/theme.scss.liquid->paste below code at the bottom of the file.

.site-nav--dropdown, .site-nav--dropdown-grandchild {
border: none;
    background-color: #93d500;
}
.site-nav--dropdown a, .site-nav--dropdown-grandchild a {
color: #fff;
    padding: 5px 45px 5px 15px;
}