* {
    box-sizing: border-box;
}

.Q1 {
    font-size: 4em;
    width: 600px;
    height: 120px;
    padding: 25px;
    text-align: center;
    background-color: #EEEEEE;
    margin: 40px auto 0;
    position: relative;
    letter-spacing: 5px;
    font-weight: bold;
}

.Q1::first-letter {
    color: #F44336;
}

.Q1::before {
    content: "";
    position: absolute;
    width: 620px;
    height: 140px;
    background-color: #F44336;
    top: -10px;
    left: -10px;
    z-index: -1;
    background-image: linear-gradient(to right,
            #F44336 20%,
            #2196F3 20%,
            #2196F3 40%,
            #4CAF50 40%,
            #4CAF50 60%,
            #E91E63 60%,
            #E91E63 80%,
            #673AB7 80%)
}

hr {
    margin: 30px 0;
}

/* Question 2 */
.box {
    width: fit-content;
    margin: 0 auto;
    padding: 0 20px;
}
.box div {
    width: 600px;
    padding: 10px;
    background-color: #EEEEEE;
    margin: 20px 0;
    position: relative;
}
.box div::after {
    content: "";
    position: absolute;
    width: 100%;
    height: 3px;
    bottom: -3px;
    left: 0;
    background-color: #F44336;
    background-image: linear-gradient(to right, #19A094 50%, #F44336 50%);

}
.box div input {
    border: none;
    background-color: #EEEEEE;
    width: 100%;
    font-weight: 600;
    caret-color: red;
}