Webleb - fragmentos de código - trivia (plantilla)

HTML

<body>
    
    <div class=" questions question-1">
        <div class="q">Question 1</div>
        <div class="yes">Yes</div>
        <div class="no">No</div>
    </div>
    <div class="questions question-2">
        <div class="q">Question 2</div>
        <div class="yes">Yes</div>
        <div class="no">No</div>
    </div>
        <div class="questions question-3">
        <div class="q">Question 3</div>
        <div class="yes">Yes</div>
        <div class="no">No</div>
    </div>
        <div class="questions question-4">
        <div class="q">Question 4</div>
        <div class="yes">Yes</div>
        <div class="no">No</div>
    </div>
        <div class="questions question-5">
        <div class="q">Question 5</div>
        <div class="yes">Yes</div>
        <div class="no">No</div>
    </div>
        <div class="questions question-6">
        <div class="q">Question 6</div>
        <div class="yes">Yes</div>
        <div class="no">No</div>
    </div>
        <div class="questions question-7">
        <div class="q">Question 7</div>
        <div class="yes">Yes</div>
        <div class="no">No</div>
    </div>
        <div class="questions question-8">
        <div class="q">Question 8</div>
        <div class="yes">Yes</div>
        <div class="no">No</div>
    </div>
        <div class="questions question-9">
        <div class="q">Question 9</div>
        <div class="yes">Yes</div>
        <div class="no">No</div>
    </div>
        <div class="questions question-10">
        <div class="q">Question 10</div>
        <div class="yes">Yes</div>
        <div class="no">No</div>
    </div>

<div class="questions last">
        <div class="score">Score: your score</div>
        <div class="restart">restart</div>
    </div>

</body>

CSS

*{
 margin:0; 
 padding:0;

}
/*fundo com gradiente animado*/
body{
 font-family: Verdana, Geneva, Tahoma, sans-serif;
 background-image:linear-gradient(180deg, lightblue,rgb(18, 178, 231));
 background-size: 100% 150vh;
 background-position: 100% -50vh;
 background-repeat: no-repeat;
 animation:simpleBackground  2s linear infinite;
 width:100vw;
 height:100vh;
 display: flex;
 flex-direction: column;
 align-items: center;
 justify-content: center;
 user-select:none;
 overflow:hidden;
}
/*classe em comum entre as perguntas */
.questions{
 position:absolute;
 background: white;
 width:30%;
 height:20%;
 border-radius:10px;
 box-shadow: 2px 2px 20px 2px black;
 display: flex;
 flex-direction: row;
 justify-content: space-around;
 align-items:flex-end;
 transform-origin: left center;
 opacity:1;
}
/* classe em comum entre as respostas */
.questions .yes{
 position: relative;
 bottom: 20%;
 background:lime;
 padding:5px;
 border-radius:1px;
 width:60px;
 text-align:center;
 cursor: pointer;

}
/* classe em comum entre as respostas */
.questions .no{
 position: relative;
 bottom: 20%;
 background:red;
 padding:5px;
 border-radius:1px;
 width:60px;
 text-align:center;
 cursor: pointer;
}
/* cada pergunta individualmente com um z-index(profundidade diferente) e um pequeno transform entre eles */
.question-1{
 z-index: 10;
}
.question-1 .q{
 position: absolute;
 bottom:65%;
}
.question-2{
 z-index: 9;
 transform: translate(1%,2%);
}
.question-2 .q{
 position: absolute;
 bottom: 62%;
}
.question-3{
 z-index: 8;
 transform: translate(2%,3%);
}
.question-3 .q{
 position: absolute;
 bottom: 59%;
}
.question-4{
 z-index: 7;
 transform: translate(3%,4%);
}
.question-4 .q{
 position: absolute;
 bottom: 62%;
}
.question-5{
 z-index: 6;
 transform: translate(4%,5%);
}
.question-5 .q{
 position: absolute;
 bottom: 56%;
}
.question-6{
 z-index: 5;
 transform: translate(5%,6%);
}
.question-6 .q{
 position: absolute;
 bottom: 53%;
}
.question-7{
 z-index: 4;
 transform: translate(6%,7%);
}
.question-7 .q{
 position: absolute;
 bottom: 50%;
}
.question-8{
 z-index: 3;
 transform: translate(7%,8%);
}
.question-8 .q{
 position: absolute;
 bottom: 47%;
}
.question-9{
 z-index: 2;
 transform: translate(8%,9%);
}
.question-9 .q{
 position: absolute;
 bottom: 44%;
}
.question-10{
 z-index: 1;
 transform: translate(9%,10%);
}
.question-10 .q{
 position: absolute;
 bottom: 41%;
}
/*ultima classe */
.last{
 z-index:0;
 transform: translate(10%,11%);
}
.last .score{
 position: absolute;
 bottom: 38%;

}
.last .restart{
 position: relative;
 bottom: 20%;
 background:goldenrod;
 padding:5px;
 border-radius:1px;
 width:60px;
 text-align:center;
 cursor: pointer;
}
/*animacao do background */
@keyframes simpleBackground{
 0%,100%{background-position: 100% -50vh;}
 50%{background-position:100% 0vh}
}
/*animacao pop para usar com javascript toda vez que clicar em uma resposta */
@keyframes pop{
 0%{transform:rotateZ(0);opacity:1}
 20%{opacity:1;}
 60%{opacity:0;}
 100%{transform:rotateZ(-90deg); opacity:0;}
}

JS