index.css

html {
    margin: 0;
    padding: 0;
    background-image: linear-gradient( 180deg, hsl(215deg 28% 17%) 0%, hsl(206deg 44% 20%) 31%, hsl(198deg 71% 21%) 43%, hsl(193deg 100% 22%) 52%, hsl(190deg 100% 24%) 59%, hsl(186deg 100% 26%) 64%, hsl(181deg 100% 27%) 69%, hsl(175deg 100% 30%) 74%, hsl(168deg 100% 33%) 81%, hsl(160deg 84% 39%) 100%);
    height: 100%;
}

body {
    padding: 0 10%;
    margin: 0%;
}

.gen {
    text-align: left;
    color: white;
    margin: 5% 0 0% 0%;
    font-size: 40px;
    font-weight: bold;
    line-height: 1;
}

.accent-text {
    color: #10D981;
    font-size: 40px;
    font-weight: bold;
    line-height: 1;
}

.msg {
    color: #D5D4D8;
    line-height: 0;
    font-size: 20px;
}

.bottom {
    display: flex;
    flex-wrap: wrap;
    padding: 5%;
    text-align: center;
}

.generatePW,
.removePW {
    background-color: #10D981;
    border-radius: 3px;
    border-color: rgba(0, 0, 0, 0);
    font-size: 1.5rem;
    color: #424242;
}

#pw1,
#pw2,
#pw3,
#pw4 {
    margin: 2% 5%;
    font-size: 24px;
    font-style: bold;
    justify-content: center;
    color: #10D981;
    word-break: break-all;
    border-color: rgba(0, 0, 0, 0);
    border-radius: 12px;
    background-color: #374F50;
    min-width: 40%;
    max-width: 40%;
    min-height: 2rem;
    display: flex;
    /* background-image: url('img/ellipsis.svg');
    background-repeat: no-repeat;
    background-position: center; */
}

#length {
    background-color: rgba(0, 0, 0, 0);
    border-color: rgba(0, 0, 0, 0.4);
    color: white;
    margin: 10px;
    font-size: 1.5rem;
}

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

#lengthLabel {
    color: #10D981;
    font-size: 1.5rem;
}

button:hover {
    cursor: pointer;
    opacity: 0.8;
    border-color: rgba(0, 0, 0, .7);
    border-radius: 5px;
}

button:active {
    cursor: pointer;
    opacity: 0.5;
    border-color: rgba(0, 0, 0, .4);
    border-radius: 5px;
    box-shadow: 2px -5px 3px rgba(0, 0, 0, .3);
}