body {
    position: relative;
}
@import url('https://fonts.googleapis.com/css?family=Open+Sans:300');
@font-face {
    font-family: "OpenSans-SemiBold";
    src: url('../fonts/OpenSans-SemiBold.ttf') format("truetype");
}
@font-face {
    font-family: "OpenSans-Regular";
    src: url('../fonts/OpenSans-Regular.ttf') format("truetype");
}
body {
    box-sizing: border-box;
}
#header {
    position: relative;
    height: 10vh;
    display: flex;
    border-top: 1px solid black;
}
#main {
    position: relative;
    height: 65vh;
}
#footer {
    position: relative;
    text-align: center;
    height: 10vh;
    margin: auto;
    border-bottom: 1px solid black;
}
.question {
    position: absolute;
    margin      : 0;
    border      : 0px;
    /* font-size   : 1.5vw; */
    font-family : "OpenSans-Regular", Helvetica, Arial, serif;
    transform           : rotate(0deg);
}
.question_button {
    background-color: rgba(155, 154, 155, 1.0);
    color: rgb(255, 255, 255);
    height: 3vh;
    width: 80px;
    margin-top: 2vh;
    margin-bottom: 2px;
    margin-right: 1vw;
    border-radius: 12px;
    border-width: 0px;
    transform: rotate(0deg);
}
#instruction {
    position: absolute;
    right: 5%;
    padding: 5px;
    width: 35%;
    border: 1px solid grey;
    border-left: 10px solid rgba(0, 172, 255, 1.0);
}
.button {
    border-radius: 50vw;
    width: 20%;
    height: 7%;
    background-color: #288ec8;
    border: none;
    color: white;
    padding: 1%;
    text-align: center;
    text-decoration: none;
    /* font-size: 1.5vw; */
    font-family: arial;
    margin-left: 1%;
    margin-right: 1%;
}
.button:hover {
    background-color:gray;
    cursor:pointer;
}
#correct {
    position: relative;
}
#wrong {
  position: relative; 
}
#instructionbox {
    position: relative;
    border: 1px solid grey;
    font-family: arial;
    /* font-size:1.5vw; */
    float: none;
}