main {
    width: clamp(50px, 85vw, 700px);
    overflow-y: hidden;
}
.tablinks {
    display: flex;
    justify-content: center;
}
.tablink {
    margin: 0 10px 0 10px;
    border: none;
    background-color: #ffd754;
    width: 50%;
    height: 70px;
    font-size: 20px;
    border-radius: 50% 50% 5px 5px;
    opacity: 0.4;
    transition-duration: 100ms;
    z-index: 8;
}
.tablink.active {
    transform: scale(1.1);
    opacity: 1;
}
.tabs {
    width: 100%;
    margin-top: 10px;
    height: 100%;
}
.tabs * {
    z-index: 10;
    border-radius: 10px 10px 0 0;
}
.tab {
    background-color: white;
    height: 100%;
    width: 100%;
    padding: 40px 0 0 0;
}
.tab > form {
    display: flex;
    flex-flow: column;
    justify-content: center;
    align-items: center;
}
.tab > form > * {
    margin: 10px;
    border: 1px black solid;
    border-radius: 5px;
}
.tab > form > input[type=text], .tab > form > input[type=password] {
    height: 30px;
    padding: 0 10px 0 10px;
    width: clamp(50px, 65vw, 300px);
    background-color: white;
}

.tab > form > input[type=submit], .tab > form > button {
    height: 30px;
    padding: 0 10px 0 10px;
    width: clamp(100px, 45vw, 200px);
    background-color: #ffd754;
    border: none;
}
.tab > h1 {
    padding: 0 30px 30px 30px;
    text-align: center;
}