*{
    box-sizing: border-box;
}
html {
    font-family: sans-serif;
    -ms-text-size-adjust: 100%;
    -webkit-text-size-adjust: 100%;
}
body{
    margin: 0;
    font: 16px "Ubuntu", sans-serif;
    font-family: "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: #606c71;
}
header{
    color: #fff;
    text-align: center;
    background-color: #159957;
    background-image: linear-gradient(120deg, #155799, #159957);

    padding: 5rem 6rem;
}
header h1, header h2{
    margin-top: 0;
}
h1, h2, h3{
    margin: 0.67em 0;
}
h1{
    font-size: 3.25rem;
    margin-bottom: 0.4rem;
}
h2{
    font-size: 2rem;
}
h3{
    font-size: 1.25rem;
    font-weight: normal;
    margin-bottom: 5px;
}
.h2{
    margin: 0;
    font-weight: normal;
}
.h2 small{
    font-size: 1rem;
}
header h2{
    font-size: 1.25rem;
    font-weight: normal;
    opacity: 0.7;
}
main{
    padding: 30px 96px;
    font-size: 1.1rem;
}
main p{
    margin-bottom: 1em
}
table{
    border-collapse: collapse;
    border-spacing: 0;
    width: 100%;
}
table th, table td {
    padding: 0.5rem 1rem;
    border: 1px solid #e9ebec;
}
code, .code{
    background: #F3F6FA;
    border: 1px solid #dce6f0;
    border-radius: 5px;
    padding: 10px;
    display: block;
    margin: 20px 0;
    white-space: pre-wrap;
    font-size: .8em;
    font-family: monospace;
}
.row{
    display: flex;
    justify-content: space-between;
    gap: 20px;
}
.row .col{
    width: calc(100% - 20px);
}
.sm-code{
    background-color: #f5f5f5;
    color: #ff3860;
    font-size: .8em;
    font-weight: 400;
    padding: 0.25em 0.5em 0.25em;
    display: inline;
    white-space: initial;
}
.about-block{
    /* white-space: pre;
    margin-top: -20px; */
    padding-left: 110px;
}
.option{
    border-bottom: 1px solid #ddd;
    padding-bottom: 20px;
}
.mtb5{
    margin: 5px 0;
}
.mt30{
    margin-top: 30px;
}
.heart{
    color: red;
}
a{
    color: #2196f3;
    font-size: 0.95em;
}
footer{
    background: #f5f5f5;
    padding: 3rem;
    text-align: center;
    margin-top: 5rem;
}
footer a{
    color: #555;
}
@media (max-width: 1015px) {
    .row{
        flex-direction: column;
    }
    .row .col {
        width: 100%;
    }
}
@media (max-width: 750px) {
    main{
        padding: 30px 20px;
    }
    .about-block {
        padding-left: 0;
    }
}
@media (max-width: 500px) {
    header{
        padding: 5rem 3rem;
    }
    header h1{
        font-size: 2.5rem;
    }
}