
.themelist-head-btn{
margin: 0px, 10px;
font-size: 16px;
cursor: pointer;
transition: 0.3s ease;
border: 1px solid rgba(0,0,0,0);
text-align: center;
background: linear-gradient(to right, #59f9b7, #66feea);
padding: 25px 65px;
border-radius: 50px;
color: black;
}
.themelist-head-btn:hover{
letter-spacing: 5px;
}

/* 스크롤을 해야하는 부분을 감싸주고 css를 적용해준다 */
.themelist-head{
display: grid;
grid-auto-flow: column;
scroll-behavior: auto;
gap: 1.2rem;
overflow-y: auto;
overscroll-behavior-x: contain;
scroll-snap-type: x mandatory;
scrollbar-width: none;
padding: 20px 0px;
border-bottom: 1px solid rgba(255,255,255,0.8); ;
}
/* 스크롤바 투명 */
::-webkit-scrollbar{
display: none;
}
참조 : https://github.com/codescientists/reel-css-animations/tree/main/56_Neon%20button%20effect

.header {
background-color: rgb(0, 0, 0);
display: flex;
justify-content: space-between;
}
.header__navmenu{
display: flex;
justify-content: space-between;
}
.header__navmenu__button{
position: relative;
padding: 10px 30px;
margin: 45px 10px;
color: #21ebff;
text-decoration: none;
font-size: 20px;
text-transform: uppercase;
transition: 0.5s;
}
.header__navmenu__button::before{
content: " ";
position: absolute;
top: -1px;
left: -1px;
width: 10px;
height: 10px;
border-top: 2px solid #21ebff;
border-left: 2px solid #21ebff;
transition: 0.5s;
transition-delay: 0.5s;
}
.header__navmenu__button::after{
content: " ";
position: absolute;
bottom: -1px;
right: -1px;
width: 10px;
height: 10px;
border-bottom: 2px solid #21ebff;
border-right: 2px solid #21ebff;
transition: 0.5s;
transition-delay: 0.5s;
}
.header__navmenu__button:hover::before,
.header__navmenu__button:hover::after {
width: 100%;
height: 100%;
transition-delay: 0s;
}
.header__navmenu__button:hover {
background: #21ebff;
color: #000;
box-shadow: 0 0 50px #21ebff;
transition-delay: 0.5s;
}

.header {
display: flex;
justify-content: center;
list-style: none;
}
.header__navmenu {
margin: 0 10px;
display: flex;
justify-content: space-between;
}
.header__navmenu__button {
font-size: 20px;
height: 150px;
width: 150px;
border-radius: 20%;
display: flex;
align-items: center;
justify-content: center;
text-decoration: none;
color: white;
position: relative;
transition: 0.5s ease;
}
.header__navmenu__button:hover {
background-image: linear-gradient(45deg, #12c2e9, #c471ed, #f64f59);
background-clip: text;
color: transparent;
-webkit-text-fill-color: transparent;
-webkit-background-clip: text;
font-size: 40px;
cursor: pointer;
}
.header__navmenu__button::before {
content: '';
position: absolute;
z-index: -1;
height: 100px;
width: 100px;
border-radius: 50%;
background: linear-gradient(45deg, #12c2e9, #c471ed, #f64f59);
transform: scale(1);
transition: 0.5s ease-in-out;
}
.header__navmenu__button:hover::before {
transform: scale(0);
}