h2 {
    font-family: "Roboto Slab", serif;
    font-size: 32px;
    color: black;
    margin: 30px calc(10% + 10px) 0 calc(10% + 10px);
}

ul {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    
    width: 100%;
    height: calc(100vh - 80px);
    overflow-y: auto;
}

ul li {
    display: inline-block;
    width: 80%;
    margin: 20px auto;
}

ul li h3 {
    display: flex;
    align-items: center;
    
    width: calc(100% - 60px);
    line-height: 40px;
    background-color: white;
    padding: 10px 30px;
    
    font-family: "Roboto Slab", serif;
    font-size: 18px;
    font-weight: bold;
    color: black;
    
    border: solid 1px #b5b5b5;
    border-radius: 5px;
}

ul li h3:hover {
    cursor: pointer;
}

ul li.opened h3 {
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
}

ul li h3 .arrow {
    display: inline-block;
    width: 0; 
    height: 0; 
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
    border-left: 10px solid #464646;
    
    margin-right: 20px;
    
    transition: transform ease 0.2s;
}

ul li h3:hover .arrow {
    transform: rotate(45deg) translateY(2px);
}

ul li h3 .arrow.opened {
    transform: rotate(90deg);
}

ul li p {
    width: calc(100% - 60px);
    padding: 10px 30px;
    
    font-family: "Roboto Slab", serif;
    font-size: 16px;
    line-height: 18px;
    color: black;
    
    background-color: #e9e9e9;
    
    border: solid 1px #b5b5b5;
    border-bottom-left-radius: 5px;
    border-bottom-right-radius: 5px;
}