.head_title,.row{border-bottom:1px solid grey}*{box-sizing:border-box;margin:0}.row{flex-wrap:nowrap;margin:2rem auto;max-width:1024px}.head_title{font-size:2rem;background-image:url(/imgs/addition_sign.svg);display:flex;max-width:90%;text-shadow:2px 4px 1px #00fbff;font-weight:700;justify-content:center;background-size:contain;background-repeat:space;background-position:center;align-items:center;margin:0 auto;border-radius:10px;padding:1rem;background-color:#f0f8ff}.page-selector{border:1px solid grey;font-size:1.15rem;background-color:#faebd7;border-radius:7px;display:flex;padding:.5rem;width:270px;justify-content:space-evenly}.quiz-section,.train-section{display:flex;border-bottom:1px solid grey;width:70%}.division{background-color:rgba(255,0,255,.5);box-shadow:7px 5px 2px rgba(0,72,255,.711)}.addition{background-color:#98a8f8;box-shadow:7px 5px 2px rgba(0,255,38,.711)}.multiplication{background-color:rgba(255,0,0,.7);box-shadow:7px 5px 2px rgba(255,0,0,.5)}.operations_division{cursor:pointer;max-height:598px;max-width:calc(12rem);border:1px solid grey;flex-wrap:wrap;gap:10px;border-radius:15px;padding:1rem .5rem;margin:.25rem;display:flex;flex-direction:column;align-content:space-between;justify-content:space-between;align-items:center}.h1-container,.texts{padding:1rem;border-radius:10px}.operations_division a{text-decoration-line:none}.h1-container{background-color:hsla(0,0%,100%,.55)}.paragraph{font-size:1.5rem;font-weight:500;text-shadow:none;text-align:center}.operations-container{flex-direction:column;gap:15px;align-items:center}.texts{background-color:rgba(250,255,255,.7);box-shadow:inset 1px 1px 5px #8a2be2}.balloons{background-color:#b2c7ff;box-shadow:7px 5px 2px rgba(0,255,38,.711)}.quiz-section{flex-wrap:wrap;justify-content:space-evenly}.train-section{justify-content:space-evenly}.paragraph-section{margin:1rem}h2{text-shadow:1px 1px 0 #8a2be2}@media (max-width:767px){.quiz-section,.train-section{flex-direction:column;align-items:center}.head_title{font-size:1.5rem;flex-direction:column}.row{flex-wrap:wrap}.paragraph{font-size:1.25rem}}