html{
    width:100%;
    height: 100%;
    margin: 0;
}
header{
    display: flex;
    align-items: center;
}

button{
    width: 80px;
    height: 30px;
    margin-left: 20px;
    border: none;
    color: white;
    background-color: #1e90ff;
    font-weight: bold;
    font-size: 20px;
    border-radius: 20px;
    cursor: pointer;
}
button:hover{
    background-color:#00bfff ;
}
.how{
    margin: 5px 0;
}

ul{
    padding: 0;
}
ul li{
    display: flex;
    align-items: center;
    border:solid 1px #d3d3d3;
}
li + li {
    border-top:none;
}

li p{
    font-size: 30px;
    width: 70px;
}
.images{
    min-height: 100px;
    height: auto;
    width: 100%;
    border-left:solid 1px #d3d3d3;
}

.color{
    background-color:#c0c0c0;
}

#modal{
    position: absolute;
    left: 0;
    top: 0;
    background-color: rgba(0,0,0,0.5);
    height: 100%;
    width: 100%;
    display: none;
}
#explanation{
    padding: 5px;
    background-color: white;
    max-width: 700px;
    min-width: 300px;
    margin: 0 auto;
    margin-top: 5%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
#explanation img{
    border: solid 1px black;
}
#close{
    margin:0 auto;
}

@media screen and (max-width: 480px){
    header{
        display: block;
    }
    header h1{
        margin: 2px;
        font-size: 30px;
    }
    header button{
        margin: 0;
    }
}