body {
    background-color: #f4f4f4;
    font-family: "Rubik", sans-serif;
    font-optical-sizing: auto;
    font-weight: 300;
    font-style: normal;
}

.logo {
    max-width: 250px;
}

img.logo_img {
    max-height: 150px;
    margin-top: 25px;
}

.content {
    max-width: 800px;
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}
.space {
    padding: 6px 0px;
}

div#question_box {
    border: 0px solid gray;
    border-radius: 8px;
    padding: 50px 20px 65px 20px;
    margin: 30px 20px 30px 20px;
    box-shadow: rgba(0, 0, 0, 0.1) 0px 10px 15px -3px, rgba(0, 0, 0, 0.05) 0px 4px 6px -2px;
    background-color: #fdfdfd;
}





div#question_num_title {
    height: 100%;
    font-size: 16px;
    color: gray;
}

div#question_body {
    font-size: 1.5em;
    font-weight:400;
    margin-top: 10px;
    margin-bottom: 50px;
}

div#second_text {
    color: gray;
}

.question_input_text {
    width: 80%;
    /* height: 52px; */
    /* min-height: 1em; */
    /* text-align: center; */
    border: 0;
    border-bottom: 1px solid gray;
    /* padding-top: 15px; */
}

.question_input_text::placeholder {
    text-align: center; 
    position: absolute;
    /* bottom: 10px;  */
}


.question_input_text:focus {
    border-bottom: 2px solid skyblue;
    transition: border-color 0.4s;
    outline: none;
}

.question_input_text:focus::placeholder {
    opacity: 0;
    transition: opacity 0.2s ease-in-out;
  }


.question_radio_box {
    text-align: left;
    line-height: 20px;
    font-size: 16px;
    margin: 0px 7% 0px 12%;
    position: relative;
}

.multi_q_checkbox {
    text-align: left;
    font-size: 16px;
    margin: 0px 7% 0px 12%;
}

.draggable {
    /* border: 1px solid gray; */
    border-radius: 6px;
    width: 80%;
    margin: 12px auto 12px auto;
    padding: 8px;
    box-shadow: rgba(0, 0, 0, 0.08) 0px 4px 12px;

    font-size: 16px;
}

tbody.question_table {
    vertical-align: top;
    
}
th, td {
    padding: 8px;
  }

 /* label {
    position: absolute; 
    display: inline; 
    margin-left: 30px; 
    line-height: 20px; 
  }  */


img {
    
    max-width: 100%;
    height: auto;
}

.question_body_image {
    max-width: 100%;
    height: auto;
}
.question_body_image_box {
    margin: 0px 10% 0px 10%;
    padding-bottom: 40px;
}

.submit-btn-div {
    padding: 25px 0px;
}

input[type='radio'],[type='checkbox'] {
    box-sizing: border-box;
    appearance: none;
    background: white;
    outline: 1px solid gray;
    border: 3px solid white;
    width: 16px;
    height: 16px;
    transform: translateY(3px);

  }
  
input[type='radio']:checked ,[type='checkbox']:checked {
    background: skyblue;
  }

input.submit-btn {
    width: 166px;
    height: 52px;
    border: 1px solid black;
    border-radius: 8px;
    font-size: 16px;
    box-shadow: rgba(0, 0, 0, 0.1) 0px 10px 15px -3px, rgba(0, 0, 0, 0.05) 0px 4px 6px -2px;
    margin-bottom: 40px;
}

input.submit-btn:disabled {
    pointer-events: none;
  }


input.submit-btn:hover {
    color: #fff;
    background-color: #1A1A1A;
    box-shadow: rgba(0, 0, 0, 0.25) 0 8px 15px;
    transform: translateY(-2px);
  }

input.submit-btn:active {
    box-shadow: none;
    transform: translateY(0);
  }


.comment_ {
    font-size: 18px;
    border-radius: 8px;
    background-color: #b4e9ff61;
    width: 75%;
    margin: 10px auto 10px auto;
    padding: 20px 4%;
    text-align: left;
}

.total_score {
    text-align: right;
    color: gray;
    font-size: 18px;
    margin: 0px 4% 10px 0;
}

.student_answer {
    font-size: 18px;
}

.answer-false {
    /* border: 0px solid #ffdcd3; */
    border-radius: 8px;
    background-color: #ffdcd3;
    width: 75%;
    margin: 10px auto 10px auto;
    padding: 20px 4%;
    text-align: left;
}

.answer-true {
    /* border: 0px solid #e8f6e7; */
    border-radius: 8px;
    background-color: #e8f6e7;
    width: 75%;
    margin: 10px auto 10px auto;
    padding: 20px 4%;
    text-align: left;
}

.answer-yellow {
    /* border: 0px solid rgb(239, 239, 84); */
    border-radius: 8px;
    background-color: #fafdcf;
    width: 75%;
    margin: 10px auto 10px auto;
    padding: 20px 4%;
    text-align: left;
}

a.navbar-brand {
    max-width: 220px;
}

a.dropdown-item {
    font-weight: 300;
}

.dropdown-item.active, .dropdown-item:active {
    background-color: skyblue;
}

.countdown {
    font-size: 14px;
    font-weight: 400;
    color: #f2f2f2;
    margin: 0px 4% 10px 0;
    position: fixed;
    right: 0px;
    top: 5px;
    z-index: 1000;
    background-color: #ADBAD3;
    padding: 12px;
    border-radius: 8px;
}