html{
    height: 100%;
    background: radial-gradient(circle, white, grey);
    background: -webkit-radial-gradient(circle, white, grey);
    background: -moz-radial-gradient(circle, white, grey);


}

#container{
    height: 400px;
    width: 550px;
    background-color: rgb(135, 219, 191);
    margin: 100px auto;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0px 4px 3px 0px rgb(67, 124, 105);
    position: relative;
}

#score{
    background-color: rgb(233, 233, 141);
    color: rgb(118, 126, 6);
    padding: 11px;
    position: absolute;
    left: 500px;
    border-radius: 5px;
    box-shadow: 0px 3px 3px;
}

#correct{
    position: absolute;
    left: 260px;
    background-color: rgb(26, 197, 26);
    color: white;
    padding: 11px;
    border-radius: 4px;
    box-shadow: 0px 1px 1px;
    display: none;
}

#wrong{
    position: absolute;
    left: 250px;
    background-color: rgb(228, 14, 6);
    color: white;
    padding: 11px;
    border-radius: 4px;
    box-shadow: 0px 1px 1px;
    display: none;
}

#question{
    width: 450px;
    height: 150px;
    margin: 50px auto 10px auto;
    background-color: rgb(182, 95, 233);
    border-radius: 4px;
    box-shadow: 0px 4px 2px rgb(111, 42, 151);
    font-size: 80px;
    text-align: center;
    font-family:'Courier New', Courier, monospace;
    line-height: 160px;
    color: black;
}

#instruction{
    width: 450px;
    height: 50px;
    background-color: rgb(223, 113, 217);
    border-radius: 4px;
    box-shadow: 0px 2px 2px rgb(111, 42, 151);
    margin: 10px auto;
    text-align: center;
    line-height: 49px;
    font-family:Verdana, Geneva, Tahoma, sans-serif;
}

#choices{
    height: 100px;
    width: 450px;
    margin: 5px auto;
}

.box{
    width: 85px;
    height: 85px;
    background-color: white;
    float: left;
    margin-right: 36px;
    border-radius: 3px;
    box-shadow: 0px 4px rgb(119, 118, 118, 0.5);
    cursor: pointer;
    text-align: center;
    line-height: 80px;
    position: relative;
    transition: all 0.2s;
    -webkit-transition: all 0.2s;
    -moz-transition: all 0.2s;
    -ms-transition: all 0.2s;
    /* also for box-shadow */
}
#box4{
    margin-right: 0px;
}

.box:hover, #startreset:hover{
    background-color: rgb(145, 63, 184);
    box-shadow: 0px 3px rgb(97, 42, 122);
    color: aliceblue;
}
.box:active, #startreset:active{
    box-shadow: 0px 0px rgb(97, 42, 122);
    top: 4px;
}

#startreset{
    width: 80px;
    background-color: rgb(89, 107, 207);
    padding: 8px;
    margin: 0 auto;
    border-radius: 3px;
    box-shadow: 0px 4px rgba(73, 89, 182, 0.5);
    cursor: pointer;
    text-align: center;
    position: relative;
    transition: all 0.2s;
    -webkit-transition: all 0.2s;
    -moz-transition: all 0.2s;
    -ms-transition: all 0.2s;
    /* also for box-shadow */
}

#timeremaining{
    width: 155px;
    padding: 10px;
    border-radius: 3px;
    box-shadow: 0px 3px 3px;
    color: rgb(118, 126, 6);
    background-color: rgb(233, 233, 141);
    position: absolute;
    top: 394px;
    left: 400px;
    /* visibility: hidden; */
    display: none;
}

#gameover{
    height: 200px;
    width: 500px;
    background: linear-gradient(orange, rgb(238, 53, 53));
    background: -webkit-linear-gradient(orange, rgb(238, 53, 53));
    background: -moz-linear-gradient(orange, rgb(238, 53, 53));
    text-transform: uppercase;
    color: white;
    font-size: 2.5em;
    text-align: center;
    position: absolute;
    top: 100px;
    left: 45px;
    z-index: 2;
    display: none;
    font-family:'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}