header{position:fixed;z-index:9999}.header-main{margin:auto}.header-main .header-container{display:flex;justify-content:space-between;align-items:center}.overlay-content{position:relative;top:25%;width:100%;text-align:center;margin-top:30px}.overlay .closebtn{position:absolute;top:20px;right:45px;font-size:60px}.header-container__section2b{text-align:right}@media screen and (max-height:450px){.overlay a{font-size:20px}.overlay .closebtn{font-size:40px;top:15px;right:35px}}.header-container nav li a{text-transform:uppercase;font-weight:700}