style.css

@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@500&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Lato&display=swap');

body {
    position: relative;
    margin: 0;
    min-height: 100vh;
    background-color: #effeff;
}

#todoCard {
    width: 300px;
}

#todoCard h1 {
    font-size: 48px;
    margin-bottom: 5px;
    font-family: 'Roboto', sans-serif;
    color: #0d364e;
}

input {
    font-size: 17px;
    height: 30px;
    width: calc(100% - 60px);
    background-color: #effeff;
    border: 2px solid #5e8284;
    color: #0d364e;
}

input::placeholder {
    color: #5e8284;
}
#addGoalBtn,
#addTodoBtn {
    width: 36px;
    height: 36px;
    background-color: #4dc85a;
    border-radius: 18px;
    position: relative;
    border: none;
    transform: translateX(-5px);
}
#addGoalBtn,
#addTodoBtn:hover {
    cursor: pointer;
}
#addBtn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}
ul {
    padding-left: 0px;
}
li {
    user-select: none; /* supported by Chrome and Opera */
    -webkit-user-select: none; /* Safari */
    -khtml-user-select: none; /* Konqueror HTML */
    -moz-user-select: none; /* Firefox */
    -ms-user-select: none; /* Internet Explorer/Edge */
    display: inline-flex;
    width: 75%;
    background-image: url(./icons/bullet.svg);
    background-repeat: no-repeat;
    padding-left: 25px;
    background-color: #d1f4f1;
    height: 40px;
    margin-left: 0px;
    margin-bottom: 20px;
    font-family: 'Lato', sans-serif;
    color: #0d364e;
    line-height: 40px;
    font-size: 20px;
}
li:hover {
    cursor: pointer;
}
ul > img {
    width: 30px;
    transform: translate(10px, 10px);
}
ul > img:hover {
    cursor: pointer;
}
#line {
    width: 300px;
    height: 2px;
    background-color: #adc7d6;
}

#container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

@media (min-width: 800px) {
    #container {
        padding-top: 100px;
        flex-direction: row;
        justify-content: center;
        align-items: flex-start;
        gap: 20px;
    }
    #line {
        width: 2px;
        height: 300px;
        margin-right: 20px;
    }
}

@media (max-width: 370px) {
    #container {
        transform: scale(0.8);
        margin-top: -80px;
    }
}
@media (max-width: 290px) {
    #container {
        transform: scale(0.7);
        margin-top: -120px;
    }
}